Structural Effects in the Iridium Complex Series: Photoredox Catalysis and Photoinitiation of Polymerization Reactions under Visible Lights
|
|
- Aldous Little
- 5 years ago
- Views:
Transcription
1 FULL PAPER Photopolymerizations Structural Effects in the Iridium Complex Series: Photoredox Catalysis and Photoinitiation of Polymerization Reactions under Visible Lights Mohamad-Ali Tehfe, Marc Lepeltier, Frédéric Dumur, Didier Gigmes, Jean-Pierre Fouassier, and Jacques Lalevée* A series of 18 iridium complexes (Ir) have been prepared and studied. Their abilities to initiate both a ring-opening cationic polymerization (CP) using an Ir/iodonium salt couple and a free radical polymerization (FRP) in the presence of an Ir/amine/alkyl halide system under very soft irradiation (i.e., halogen lamp) or upon exposure to laser nm nm are investigated. Interestingly, these photoinitiating systems operate through an oxidative or a reductive photoredox catalytic cycle, respectively. Excellent polymerization profiles are obtained (reactive function conversions >70% for the CP of an epoxide and >60% for the FRP of low viscosity triacrylate). The photochemical mechanisms are studied by fluorescence, steady state photolysis, cyclic voltammetry, and electron spin resonance spin trapping experiments. 1. Introduction Photoredox catalysis largely used in organic synthesis [1] can help to initiate a free radical polymerization (FRP), a cationic polymerization (CP), a free radical promoted cationic polymerization, or a controlled radical polymerization (CRP) under light exposure. [2] The use of organic or inorganic metal-based complexes (MC) as photoinitiators (PI) of FRP and CP is known for a long time. [3] Radical FRP reactions as well as CRP reactions in the presence of MCs have been already disclosed (see, e.g., in ref. [2]). In the recent years, ruthenium, iridium, zinc, copper, iron, titanium, or platinum organic metal complexes Dr. M.-A. Tehfe, Prof. J.-P. Fouassier, Prof. J. Lalevée Institut de Science des Matériaux de Mulhouse IS2M UMR CNRS 7361, UHA, 15, rue Jean Starcky Mulhouse Cedex 68057, France jacques.lalevee@uha.fr Dr. M.-A. Tehfe Carrefour of Innovative Technology and Ecodesign (CITE) Faculty of Engineering University of Sherbrooke blvd Université, Sherbrooke 2500, Canada Dr. M. Lepeltier Institut Lavoisier de Versailles, UMR CNRS 8180 Université de Versailles Saint Quentin en Yvelines 45 avenue des Etats Unis, Versailles 78035, France Dr. F. Dumur, Dr. D. Gigmes Aix Marseille Univ., CNRS, ICR, UMR 7273, Marseille F-13397, France DOI: /macp (OMC) have been proposed as efficient PIs and incorporated into photoinitiating systems (PISs) as presented in several reviews. [4] Copper or iron-based photoredox catalysts were particularly interesting. [4c e] The absorption properties as well as the generation of radicals, cations, or radical cations are strongly dependent on the kind of OMCs. The requirements for a high photosensitivity under soft irradiation conditions in the visible part of the spectrum or at defined irradiation wavelengths have led to the design of novel arrangements/chemical structures of the ligands in the various series of OMCs. Herein, we will consider the iridiumbased PIs series. Indeed, conventional Ir(III) complexes mainly absorb in the UV and the spectrum presents a rather weak visible tail that allows FRP and CP in the purple/blue range. [5] Incorporation of carefully selected ligands has already led to improved properties: for example, the presence of a phenylisoquinoline ligand in iridium complexes extended the absorption up to 532 nm (e.g., Ir_9 [6] or Ir_12 [7] in Scheme 1) and even 635 nm (e.g., Ir_7 and Ir_8 in Scheme 1). [8] In the following, we prepare 14 novel derivatives (Ir_1 Ir_6, Ir_10, Ir_11, Ir_13 Ir_18) and explore the structural effects toward the initiation efficiency of the FRP of a triacrylate and the CP of a diepoxide under a halogen lamp or laser diodes at 457, 473, or 532 nm, in the presence of PISs consisting in an iridium complex (Scheme 1) and one or more additive chosen among N-methyldiethanolamine (MDEA), 2-bromoacetophenone (R-Br), or diphenyliodonium hexafluorophosphate (Iod, Ph 2 I + ). The photochemical properties as well as the associated chemical mechanisms are investigated by steady state photolysis, fluorescence measurements, theoretical calculations, and electron spin resonancespin trapping (ESR-ST), thereby allowing an access to their structure/reactivity/efficiency relationships. 2. Experimental Section 2.1. Materials The investigated iridium complexes (Ir_1 Ir_18) and other chemical compounds are shown in Schemes 1 and 2. They were prepared according to procedures presented in detail in the Supporting Information. MDEA, (1 of 7)
2 Scheme 1. Chemical structures of iridium complexes examined in this study. 2-bromoacetophenone (R-Br), and diphenyliodonium hexafluorophosphate (Iod, Ph 2 I + ) were obtained from Aldrich and used with the best purity available. (3,4-Epoxycyclohexane)methyl 3,4-epoxycyclohexylcarboxylate (EPOX; Uvacure 1500; from Allnex) and trimethylol-propane triacrylate (TMPTA; from Allnex) have been selected as benchmarked monomers (Scheme 2) well known in the photopolymerization area Synthesis of the Different Iridium Complexes Mass spectroscopy was performed by the Spectropole of Aix-Marseille University. Electronspray ionization (ESI) mass spectral analyses were recorded with a 3200 QTRAP (Applied Biosystems SCIEX) mass spectrometer. The high resolution mass spectroscopy (HRMS) mass spectral analysis was performed with a QStar Elite (Applied Biosystems SCIEX) mass spectrometer. Elemental analyses were recorded with a Thermo Finnigan EA 1112 elemental analysis apparatus driven by the Eager 300 software. 1 H and 13 C NMR spectra were determined at room temperature in 5 mm o.d. tubes on a Bruker Avance 400 spectrometer of the Spectropole: 1 H (400 MHz) and 13 C (100 MHz). The 1 H chemical shifts were referenced to the solvent peak dimethylsulfoxide (DMSO)-d 6 (2.49 ppm), CDCl 3 (7.26 ppm), and the 13 C chemical shifts were referenced to the solvent peak DMSO-d 6 (39.5 ppm), CDCl 3 (77 ppm). A detailed presentation of the synthesis is described or recalled in the Supporting Information Irradiation Sources Several lights were used for the irradiation of the samples: (i) a polychromatic light from a halogen lamp (Fiber-Lite, DC-950 incident light intensity: I 0 12 mw cm 2 ; in the nm range); (ii) monochromatic lights delivered by laser diodes at 457, 473, or 532 nm (MBL-III-BFIOPTILAS; I mw cm 2 ). The emission spectra of the light sources are given in ref. [9] Free Radical Photopolymerization (FRP) Experiments FRP experiments were carried out in laminate. The films (25 µm thick) deposited on a BaF 2 pellet were irradiated (see the irradiation sources). The evolution of the double bond content was continuously followed by real time Fourier Transform InfraRed (FTIR) spectroscopy (JASCO FTIR 4100) at 1630 cm 1 as in ref. [10]. Scheme 2. Chemical structures of monomers and additives (2 of 7)
3 2.5. Ring Opening Cationic Photopolymerization (ROP) Experiments The photosensitive formulations were also deposited on a BaF 2 pellet (25 µm thick) and irradiated under air. The evolution of the epoxy group content is continuously followed by real time FTIR spectroscopy (JASCO FTIR 4100), as described in ref. [11], at 790 cm Fluorescence Experiments The luminescence properties of the iridium complexes (Ir) were studied in acetonitrile using a JASCO FP-750 spectrometer. The interaction rate constants k q between Ir and Ph 2 I + (or MDEA) were extracted from classical Stern Volmer treatments (I 0 /I = 1 + k q τ 0 [Ph 2 I + ]; where I 0 and I stand for the luminescence intensity of the Ir complexes in the absence and in the presence of Ph 2 I + or MDEA, respectively; τ 0 stands for the lifetime of the excited iridium complex in the absence of Ph 2 I + or MDEA). The fluorescence lifetimes were determined from time-resolved experiments (Jobin-Yvon Fluoromax 4) Redox Potentials The redox potentials of the iridium complexes were measured in acetonitrile by cyclic voltammetry with tetrabutylammonium hexafluorophosphate (0.1 m) as a supporting electrolyte (Voltalab 6 Radiometer). The free energy change ΔG et for an electron transfer reaction is calculated from the equation (ΔG et = E ox E red E T + C) [12] where E ox, E red, E T, and C are the oxidation potential of the electron donor, the reduction potential of the electron acceptor, the excited state energy, and the coulombic term for the initially formed ion pair, respectively. C is neglected as usually done in polar solvents ESR-ST Experiments The ESR-ST experiments were carried out using an X-Band spectrometer (MS 400 Magnettech). The radicals were produced at room temperature (RT) upon a halogen lamp exposure under N 2 and trapped by phenyl-ntert-butylnitrone (PBN) according to a procedure described in detail in ref. [13]. The ESR spectra simulations were carried out with the WINSIM software. 3. Results and Discussion 3.1. Absorption Properties of the Studied Iridium Complexes (Ir) The ground state absorption spectra of the proposed Ir (Figure 1) allow a large and efficient matching with the Figure 1. UV vis absorption spectra of the different Ir complexes in acetonitrile (3 of 7)
4 Table 1. Parameters characterizing the photochemical properties of the iridium complexes (Ir): redox properties (in acetonitrile); excited state energy levels (E T1 ), and excited state lifetimes under air (τ), interaction rate constants with Ph 2 I + and MDEA in acetonitrile. The free energy changes for 3 Ir/Ph 2 I + (ΔG ox ) and 3 Ir/MDEA (ΔG red ) were calculated with the Rehm Weller equation. Iridium complexes E ox [V/SCE] E T1 [ev] τ a) [ns] k ox (Ph 2 I + ) [m 1 s 1 ] [ΔG ox [ev]] Ir_ [ 1.28] Ir_ [ 1.30] Ir_ [ 1.15] k red (MDEA) [m 1 s 1 ] [ΔG red [ev]] Ir_ [ 1.23] Ir_ [ 1.41] [ 0.89] Ir_ [ 1.33] Ir_ [ 1.32] a) Under air. emission spectra of the various visible light sources (halogen lamp and laser diodes). As expected, interesting absorption possibilities up to 635 nm are found. All the Irs exhibit an intense absorption in the nm wavelength range. Most of them have an interesting absorption, e.g., in the nm region (all compounds), in the nm range (e.g., Ir_1, Ir_3, Ir_4, Ir_5, Ir_6, Ir_8, Ir_10, Ir_11, Ir_12), above 500 nm (e.g., Ir_5, Ir_7, Ir_15) or even up to 650 nm (e.g., Ir_9, Ir_16, Ir_18) Redox Properties of the Studied Iridium Complexes (Ir) The redox properties of typical compounds are gathered in the Table 1. The cyclic voltammetry investigation reveals that the oxidation process is nearly reversible: e.g., the ratio of the anodic/cathodic peak currents i a /i c is <1 (i.e., the reversibility for Ir_3 and Ir_16 is rather good: i a /i c 0.94 and 0.8, respectively; Figure 2A,B). For all complexes, the Ir/Iod interaction reactions are highly favorable according to the highly negative free energy change (Table 1; e.g., ΔG = 1.28 and 1.41 ev for Ir_3 and Ir_12, respectively; using E red (Ph 2 I + ) = 0.2 V). [14] The same holds true for the Ir/MDEA reactions (e.g., ΔG = 0.89 ev for Ir_12; using E ox (MDEA) = 1 V). [15] 3.3. Excited State Reactivity of the Studied Iridium Complexes (Ir) All the Irs are luminescent (see, e.g., the case of Ir_3 in Figure 3A). The excited state lifetimes under air are rather long ( 20 ns, Table 1) and strongly quenched by O 2. The *Ir/Iod interactions occur with very high rate constants (diffusion controlled processes are found, e.g., k = and m 1 s 1 for Ir_3 and Ir_12, respectively). This quenching process promotes the decomposition of the iodonium salt through an electron transfer (1) Ir * Ir(h ν) + + * Ir + PhI Ir + Ph I and Ph I Ph + Ph I Aryl radicals (Ar ) are produced as supported by ESR-ST experiments (e.g., in an irradiated Ir_3/Iod solution, the PBN/ phenyl radical adduct (characterized by a N = 14.2 and a H = 2.2 G; reference values in ref. [16]; Figure 4A) is easily observed. A very fast bleaching is also observed during the photolysis of the Ir/Iod solution (e.g., in Figure 5; halogen lamp irradiation) in full agreement with the chemical mechanisms presented above (reaction (1)) and the highly favorable ΔG and k values for the Ir/Iod interaction (Table 1). The Ir complex is not regenerated here (to do that, a third compound such as a silane must be added as seen, e.g., in ref. [17]). Luminescence quenching experiments (Figure 3B) of the Irs by MDEA also lead to high interaction rate constants k (but approximately two orders of magnitude lower than those determined for the Ir/Iod couples; e.g., for Ir_12, k = m 1 s 1 ). The electron transfer reaction (2) is also favorable as revealed by the calculated negative free energy change ΔG (Table 1). In addition to (2), two other electron transfer reactions can occur in the Ir/R-Br/amine systems. Indeed, in the presence of the phenacylbromide, PhC( O)CH 2 (R ) are clearly generated (1) Figure 2. Examples of cyclic voltammograms: A) Ir_3 and B) Ir_ (4 of 7)
5 Figure 3. Luminescence quenching of Ir_3 by A) Iod and B) MDEA. In acetonitrile. Figure 4. Examples of ESR-ST spectra for the irradiation of different solution: A) Ir_3/Iod and B) Ir_12/ethyldimethylaminobenzoate (EDB)/R-Br. Experimental a) and simulated b) spectra. [Iod] = 0.01 m. [EDB] = m. [R-Br] = m. In tert-butylbenzene. 457 nm laser diode irradiation phenyl-n-t-butylnitrone (PBN) as a spin-trap agent. EDB is used here to avoid the known problem encountered with MDEA in ESR. according to (3) and (4): the characteristic PBN adduct of the phenacyl radical is clearly detected by ESR-ST (a N = 14.4 G; a H = 4.1 G; reference values in ref. [16]; Figure 4B). In such a system, the Ir complex is regenerated in (4) 3 + MDEA Ir Ir + MDEA + (2) 3 + R Br + + R Br followed byr Br Ir Ir R + Br (3) Ir + R Br Ir + R + Br (4) 3.4. The Iridium Complex/Iodonium Salt: A Photoinitiating System for Cationic Polymerization Figure 5. Steady state photolysis of Ir_10/Iod in acetonitrile upon the halo gen lamp exposure. UV vis spectra recorded at different irradiation times. The ring-opening cationic photopolymerization of EPOX (Scheme 2) under air in the presence of the Ir/Iod systems is quite excellent both under the halogen lamp and the laser (5 of 7)
6 Table 2. Compared polymerization profiles (epoxy function conversion vs irradiation time) for EPOX upon a laser diode exposure at 457 nm under air in the presence of iridium complex/iodonium salt couples (1%/2% w/w): rate of polymerization (R p ) and final epoxy function conversions. Ir R p /[M 0 ]*100 a) [s 1 ] Conversion [%] for t = 800 s Ir_1, Ir_2, Ir_4, Ir_ Ir_ Ir_ Ir_ Ir_ Ir_ Ir_ Ir_ Ir_ Ir_ Ir_ Ir_ Ir_ Ir_ Ir_ a) [M 0 ]: the initial monomer concentration. Table 3. Polymerization rates (Rp) and final acrylate function conversions for TMPTA in laminate. Upon a laser diode irradiation at 457 nm. Initiating system: Ir/MDEA/R-Br (1%/4%/3% w/w). Ir R p /[M 0 ]*100 a) (s 1 ) Conversion [%] for t = 200 s Ir_ Ir_ Ir_ Ir_ Ir_ Ir_ Ir_ Ir_ a) [M 0 ]: the initial monomer concentration. diodes at 457 or 532 nm (Table 2 and Figure 6). Rather high final conversions are reached after 6 min of irradiation (e.g., >70% with Ir_13, Ir_14, or Ir_16). Tack free coatings are always obtained. This highlights the ability of Ir + generated in (1) to open the epoxy ring, the kind of Ir + as well as the absorption properties of the Irs (Figure 1) driving the CP results + Ir + EPOX Polymer (5) 3.5. The Ir/Amine/Alkyl Halide Reductive Cycle: A Photoinitiating System for FRP The free radical polymerization of TMPTA in laminate in the presence of Ir/MDEA/phenacylbromide (RBr) is rather efficient under visible lights (Table 3 and Figure 7; 57% of acrylate function conversion within 200 s under a laser diode at 457 nm exposure). In the absence of phenacylbromide, no polymerization is observed (curve 1 vs curve 2). The phenacyl radicals R formed in (3) and (4) initiate the FRP (6). The relative efficiency of the different iridium complexes can be ascribed to (i) their different light absorption properties (Figure 1), (ii) the relative 1 Ir/ MDEA and 1 Ir/RBr interaction rate constants (reactions (2) (4)), and (iii) the efficiency of the Ir /R-Br electron transfer reactions R + TMPTA Polymer (6) 4. Conclusion Figure 6. Typical polymerization profiles of EPOX (epoxy function conversion vs irradiation time), under air, in the presence of Ir_16/Iod (1%/2% w/w) upon a (1) laser diode at 457 nm, (2) laser diode at 532 nm, and (3) a halogen lamp irradiation. Insert: IR spectra recorded during the photopolymerization reaction using (1): before and after polymerization. In the present paper, new iridium complexes that can work according to oxidative (in the presence of an iodonium salt) or reductive (in the presence of an amine and alkyl halide) cycles are presented. In the first case, the Ir oxidized form (Ir + ) is easily generated and starts a ring opening polymerization under visi ble light irradiation conditions (halogen lamp and laser (6 of 7)
7 Figure 7. Typical polymerization profiles of TMPTA (acrylate function conversion vs irradiation time) upon a laser diode irradiation at 457 nm in laminate in the presence of (1) Ir_12/MDEA (1%/4% w/w) and (2) Ir_12/MDEA/R-Br (1%/4%/3% w/w). diodes) and under air. In the second case, phenacyl radicals are formed and initiate the FRP. The performance of these Ir-based PISs have been mainly checked under a laser diode at 457 nm or a halogen lamp. Many of them are obviously able to work under light emitting diode (LEDs) at 365, 385, or 395 nm. The present Ir series allows a tunable character (from 300 to 635 nm) for the excitation and could extend their applications in other areas such as in the synthetic organic chemistry as photoredox catalysts. Supporting Information Supporting Information is available from the Wiley Online Library or from the author. Conflict of Interest The authors declare no conflict of interest. Keywords free radical polymerization, iridium complexes, LED, photopolymerization, ring-opening cationic polymerization (ROP) Received: April 10, 2017 Revised: June 2, 2017 Published online: July 10, 2017 [1] a) H. W. Shih, M. N. Vander Wal, R. L. Grange, D. W. C. MacMillan, J. Am. Chem. Soc. 2010, 132, 13600; b) J. M. R. Narayanam, C. R. J. Stephenson, Chem. Soc. Rev. 2011, 40, 102; c) K. Zeitler, Angew. Chem., Int. Ed. 2009, 48, 9785; d) M. H. Larraufie, R. Pellet, L. Fensterbank, J.-P. Goddard, E. Lacôte, M. Malacria, C. Ollivier, Angew. Chem., Int. Ed. 2011, 50, 4463; e) M. A. Ischay, Z. Lu, T. P. Yoon, J. Am. Chem. Soc. 2010, 132, 8572; f) G. Zhang, I. Y. Song, K. H. Ahn, T. Park, W. Choi, Macromolecules 2011, 44, [2] a) B. P. Fors, C. J. Hawker, Angew. Chem., Int. Ed. 2012, 51, 8850; b) D. Konkolewicz, K. Schröder, J. Buback, S. Bernhard, K. Matyjaszewski, ACS Macro Lett. 2012, 1, 1219; c) D. M. Haddleton, Rooftop Reactions Nat. Chem. 2013, 5, 366; d) X. Zhang, C. Zhao, Y. Ma, H. Chen, W. Yang, Macromol. Chem. Phys. 2013, 214, 2624; e) O. S. Taskin, G. Yilmaz, M. A. Tasdelen, Y. Yagci, Polym. Int. 2014, 63, 902; f) M. A. Tasdelen, M. Ciftci, Y. Yagci, Macromol. Chem. Phys. 2012, 213, 1391; g) M. Ciftci, M. A. Tasdelen, W. Li, K. Matyjaszewski, Y. Yagci, Macromolecules 2013, 46, 9537; h) A. Aguirre-Soto, C.-H. Lim, A. T. Hwang, C. B. Musgrave, J. W. Stansbury, J. Am. Chem. Soc. 2014, 136, 7418; i) J. Lalevée, N. Blanchard, M. A. Tehfe, F. Morlet-Savary, J. P. Fouassier, Macromolecules 2010, 43, 10191; j) M. Bouzrati, J.-P. Fouassier, J. Lalevée, N. Zivic, F. Dumur, A. Kermagoret, D. Gigmes, ChemCatChem 2016, 8, 1617; k) P. Xiao, J. Zhang, F. Dumur, M.-A. Tehfe, F. Morlet-Savary, B. Graff, D. Gigmes, J.-P. Fouassier, J. Lalevée, Prog. Polym. Sci. 2015, 41, 32. [3] A. F. Cunningham, V. Desobry, in Radiation Curing in Polymer Science and Technology, Vol. 2 (Eds: J. P. Fouassier, J. F. Rabek), Elsevier, Barking, UK, 1993, pp [4] a) J. P. Fouassier, J. Lalevée, Photoinitiators for Polymer Synthesis-Scope, Reactivity, and Efficiency, Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim 2012; b) J. Lalevée, J. P. Fouassier, Dye Photosensitized Polymerization Reactions: Novel Perspectives, RSC Photochemi stry Reports (Eds: A. Albini, E. Fasani), London 2014; c) P. Xiao, F. Dumur, J. Zhang, J. P. Fouassier, D. Gigmes, J. Lalevée, Macromolecules 2014, 47, 3837; d) J. Lalevée, P. Xiao, D. Gigmes, F. Dumur, Patent No. WO , 2015; e) J. Zhang, D. Campolo, F. Dumur, P. Xiao, J. P. Fouassier, D. Gigmes, J. Lalevee, J. Polym. Sci., Part A 2015, 53, 42. [5] J. Lalevée, M. A. Tehfe, F. Dumur, D. Gigmes, N. Blanchard, F. Morlet-Savary, J. P. Fouassier, ACS Macro Lett. 2012, 1, 286. [6] J. Lalevée, P. Xiao, S. Telitel, M. Lepeltier, F. Dumur, F. M. Savary, D. Gigmes, J. P. Fouassier, J. Beilstein, Org. Chem. 2014, 10, 863. [7] S. Telitel, F. Dumur, S. Telitel, O. Soppera, M. Lepeltier, Y. Guillaneuf, J. Poly, F. Morlet-Savary, P. Fioux, J.-P. Fouassier, D. Gigmes, J. Lalevée, Polym. Chem. 2015, 6, 613. [8] S. Telitel, F. Dumur, M. Lepeltier, D. Gigmes, J.-P. Fouassier, J. Lalevée, Comptes rendus chimie 2016, 19, 71. [9] M. A. Tehfe, F. Dumur, A. Zein-Fakih, S. Telitel, D. Gigmes, E. Contal, D. Bertin, F. Morlet-Savary, B. Graff, J. P. Fouassier, J. Lalevée, Eur. Polym. J. 2013, 49, [10] M. A. Tehfe, J. Lalevée, S. Telitel, E. Contal, F. Dumur, D. Gigmes, D. Bertin, M. Nechab, B. Graff, F. Morlet-Savary, J. P. Fouassier, Macromolecules 2012, 45, [11] M. A. Tehfe, J. Lalevée, S. Telitel, E. Contal, F. Dumur, D. Gigmes, D. Bertin, M. Nechab, B. Graff, F. Morlet-Savary, J. P. Fouassier, Macromolecules 2012, 45, [12] D. Rehm, A. Weller, Isr. J. Chem. 1970, 8, 259. [13] J. Lalevée, N. Blanchard, M. A. Tehfe, F. Morlet-Savary, J. P. Fouassier, Macromolecules 2011, 43, [14] J. P. Fouassier, D. Burr, J. V. Crivello, J. Photochem. Photobiol., A 1989, 49, 317. [15] a) D. Kim, A. B. Scranton, J. W. Stansbury, J. Appl. Polym. Sci. 2009, 114, 1535; b) D. Kim, J. W. Stansbury, J. Polym. Sci., Part A: Polym. Chem. 2009, 47, 887. [16] Landolt Bornstein: Magnetic Properties of Free Radicals, Vol. 26d (Ed: H. Fischer), Springer Verlag, Berlin [17] a) J. Lalevée, N. Blanchard, M.-A. Tehfe, M. Peter, F. Morlet-Savary, J.-P. Fouassier, Polym. Bull. 2012, 68, 341; b) M.-A. Tehfe, D. Gigmes, F. Dumur, D. Bertin, F. Morlet-Savary, B. Graff, J. Lalevée, J.-P. Fouassier, Polym. Chem. 2012, 3, (7 of 7)
Supporting Information for
Electronic Supplementary Material (ESI) for ChemComm. This journal is The Royal Society of Chemistry 2015 Supporting Information for In-situ Production of Visible Light Absorbing Ti-based Nanoparticles
More informationN-[2-(dimethylamino)ethyl]-1,8-naphthalimide Derivatives as Photoinitiators under LEDs
Electronic Supplementary Material (ESI) for Polymer Chemistry. This journal is The Royal Society of Chemistry 18 Supporting Information: -[2-(dimethylamino)ethyl]-1,8-naphthalimide Derivatives as Photoinitiators
More informationSupporting Information
Supporting Information Carbazole Scaffold Based Photoinitiators/Photoredox Catalysts: Toward new High Performance PhotoInitiating Systems and Application in LED Projector 3D Printing Resins. Assi Al Mousawi
More informationElectronic Supplementary Information
Electronic Supplementary Material (ESI) for Polymer Chemistry. This journal is The Royal Society of Chemistry 2014 Electronic Supplementary Information Amino and itro Substituted 2-Amino-1H-benzo[de]isoquinoline-
More informationNovel Carbazole Skeleton-Based Photoinitiators for LED Polymerization and LED Projector 3D Printing
Article Novel Carbazole Skeleton-Based Photoinitiators for LED Polymerization and LED Projector 3D Printing Assi Al Mousawi,, Patxi Garra, Frédéric Dumur 3, *, Thanh-Tuan Bui 4, Fabrice Goubard 4, Joumana
More informationExtensive Dark Cure from Controlled Polymerization Based on a Method Using Visible-Light Activated Initiator System
Extensive Dark Cure from Controlled Polymerization Based on a Method Using Visible-Light Activated Initiator System Dongkwan Kim, and Jeffrey W. Stansbury University of Colorado-Denver, School of Dental
More informationThe Sensitization of Aliphatic Epoxy Photopolymerization in Epoxy-Acrylate Interpenetrating Polymer Networks
The Sensitization of Aliphatic Epoxy Photopolymerization in Epoxy-Acrylate Interpenetrating Polymer Networks Tetiana Samoilenko, Nataliia Iarova, Halyna Menzheres, Oleksandr Brovko Institute of Macromolecular
More informationPhotoinitiation, Photopolymerization, and Photocuring
Jean-Pierre Fouassier Photoinitiation, Photopolymerization, and Photocuring Fundamentals and Applications Hanser Publishers, Munich Vienna New York Hanser/Gardner Publications, Inc., Cincinnati Contents
More informationPhotoinitiating Systems for LED-Cured Interpenetrating Polymer Networks
Journal of Photopolymer Science and Technology Volume 28, Number 1 (2015) 31 35 2015SPST Photoinitiating Systems for LED-Cured Interpenetrating Polymer Networks Suqing Shi 1,2, Feyza Karasu 1, Caroline
More informationPhotopolymerization using photolatent amine catalysts
Photopolymerization using photolatent amine catalysts X. Allonas*, H. Salmi, C. Ley Laboratory of Macromolecular Photochemistry and Engineering, University of Haute-Alsace, ENSCMu, 3 rue Alfred Werner
More informationInteraction of Photoexcited Photoinitiators with Nitroxyl Radicals. Igor V. Khudyakov. Department of Chemistry, Columbia University, New York, NY
Interaction of Photoexcited Photoinitiators with Nitroxyl Radicals Igor V. Khudyakov Department of Chemistry, Columbia University, New York, NY Introduction. Formulations which undergo photopolymerization
More informationA long-lived iridium(iii) chemosensor for the real-time
Electronic Supplementary Material (ESI) for Journal of Materials Chemistry B. This journal is The Royal Society of Chemistry 2017 Supporting Information A long-lived iridium(iii) chemosensor for the real-time
More informationNitroxide polymer networks formed by Michael addition: on site-cured electrode-active organic coating
Supporting information for: Nitroxide polymer networks formed by Michael addition: on site-cured electrode-active organic coating Takeshi Ibe, a Rainer B. Frings, b Artur Lachowicz, b Soichi Kyo, a and
More informationElectronic Supplementary Information (ESI) Dual Homogeneous and Heterogeneous Pathways in Photo- and
Electronic Supplementary Information (ESI) Dual Homogeneous and Heterogeneous Pathways in Photo- and Electrocatalytic Hydrogen Evolution with Nickel(II) Catalysts Bearing Tetradentate Macrocyclic Ligands
More informationNew luminescent polynuclear metal. complexes with anticancer properties: towards. structure activity relationships
Supporting Information New luminescent polynuclear metal complexes with anticancer properties: towards structure activity relationships Margot Wenzel, a,d Andreia de Almeida, b Emilia Bigaeva, b Paul Kavanagh,
More informationPHOTOCATALYSIS: FORMATIONS OF RINGS
PHOTOCATALYSIS: FORMATIONS OF RINGS Zachery Matesich 15 April 2014 Roadmap 2 Photoredox Catalysis Cyclizations Reductive Oxidative Redox-neutral Electron Transfer Conclusion http://www.meta-synthesis.com/webbook/11_five/five.html
More informationVisible Light-Induced Atom Transfer Radical Polymerization for Macromolecular Syntheses
Chapter 8 Visible Light-Induced Atom Transfer Radical Polymerization for Macromolecular Syntheses Downloaded by YALE UNIV on May 14, 2015 http://pubs.acs.org Yusuf Yagci, 1,2,* Mehmet Atilla Tasdelen,
More informationPhotophysics and redox properties of aza-bodipy dyes with electronwithdrawing
Electronic Supplementary Material (ESI) for New Journal of Chemistry. This journal is The Royal Society of Chemistry and the Centre National de la Recherche Scientifique 2017 Photophysics and redox properties
More informationSupporting Information for. Near infrared-to-blue photon upconversion by exploiting direct. S-T absorption of a molecular sensitizer
Electronic Supplementary Material (ESI) for Journal of Materials Chemistry C. This journal is The Royal Society of Chemistry 2017 Supporting Information for Near infrared-to-blue photon upconversion by
More informationSupporting Information for. Metallonaphthalocyanines as Triplet Sensitizers for Near-Infrared. Photon Upconversion beyond 850 nm
Electronic Supplementary Material (ESI) for Physical Chemistry Chemical Physics. This journal is the Owner Societies 2015 Supporting Information for Metallonaphthalocyanines as Triplet Sensitizers for
More informationElectronic Supplementary Information for Eco-friendly Molecular Transformations Catalyzed by Vitamin B 12 Derivative with Visible-Light-Driven System
Electronic Supplementary Information for Eco-friendly Molecular Transformations Catalyzed by Vitamin B 12 Derivative with Visible-Light-Driven System Keishiro Tahara a and Yoshio Hisaeda *a,b a Department
More informationSpectroscopic Quantification of Kinetic Rate Constants for Epoxy-Acrylate Hybrid Photopolymerization
Spectroscopic Quantification of Kinetic Rate Constants for Epoxy-Acrylate Hybrid Photopolymerization Brian Dillman University of Iowa, Chemical and Biochemical Eng. Dept., Iowa City, USA Julie L. P. Jessop
More informationImpact of Reabsorption on the Emission Spectra and Recombination. Dynamics of Hybrid Perovskite Single Crystals
Impact of Reabsorption on the Emission Spectra and Recombination Dynamics of Hybrid Perovskite Single Crystals Hiba Diab, 1 Christophe Arnold, 2 Ferdinand Lédée, 1 Gaëlle Trippé-Allard, 1 Géraud Delport,
More informationNovel Photochemical/Thermal Dual-Cure initiating system for cationic polymerization of thick materials
Novel Photochemical/Thermal Dual-Cure initiating system for cationic polymerization of thick materials M. LECMPEE (1,2), X. ALLNAS* (1), D. MAECHAL (2), A. CIQUI (2) (1) Laboratory of Macromolecular Photochemistry
More informationTriaryl Amine N-Functionalised 2,7-Linked Carbazole Polymers as a. New Class of Blue Emitting Materials for LED Applications
Copyright WILEY-VCH Verlag GmbH & Co. KGaA, 69469 Weinheim, Germany, 2007. Supporting Information for Macromol. Rapid Commun. 2007, 28, 1155. Triaryl Amine N-Functionalised 2,7-Linked Carbazole Polymers
More informationElectronic Supporting Information for
Electronic Supporting Information for An efficient long fluorescence lifetime polymer-based sensor based on europium complex as chromophore for the specific detection of F -, CH 3 COO - -, and H 2 PO 4
More informationPolymer Chemistry Accepted Manuscript
Polymer Chemistry Accepted Manuscript This is an Accepted Manuscript, which has been through the Royal Society of Chemistry peer review process and has been accepted for publication. Accepted Manuscripts
More informationOrganic Molecules, Photoredox, and. Catalysis
Organic Molecules, Photoredox, and Catalysis 1 What is Photoredox Catalysis 2 Transition Metal vs Organic Photoredox Transition Metal Catalysts Organic Catalyst Reprinted (2017) with permission from (Wangelin,
More informationLightly cured. Seite/Page: 22
Lightly cured UV powder coatings based on unsaturated allylic polyesters. Dominique Burget, Mircea Manea, Stavros Apostolatos, Carole Mallein, Francoise Mauguiere-Guyonnet. Allylic-terminated unsaturated
More informationElectronic Supplementary Information (ESI)
Electronic Supplementary Material (ESI) for Polymer Chemistry. This journal is The Royal Society of Chemistry 2017 Electronic Supplementary Information (ESI) One-pot blue-light triggered tough interpenetrating
More informationOne polymer for all: Benzotriazole Containing Donor-Acceptor Type Polymer as a Multi-Purpose Material
One polymer for all: Benzotriazole Containing Donor-Acceptor Type Polymer as a Multi-Purpose Material Abidin Balan a, Derya Baran a, Gorkem Gunbas a,b, Asuman Durmus a,b, Funda Ozyurt a and Levent Toppare
More informationAbstract. Introduction
New Advances In The Investigation f Photoinitiator Reactivity by Xavier Allonas*, Jacques Lalevée, Jean-Pierre Fouassier, Département de Photochimie Générale, UMR n 7525 Ecole Nationale upérieure de Chimie
More informationph-responsive Quantum Dots (RQDs) that Combine a Fluorescent Nanoparticle with a ph-sensitive Dye
Electronic Supplementary Material (ESI) for Physical Chemistry Chemical Physics. This journal is the Owner Societies 2014 ph-responsive Quantum Dots (RQDs) that Combine a Fluorescent Nanoparticle with
More informationSupporting Information
Supporting Information Geometry Flexibility of Copper Iodide Clusters: Variability in Luminescence Thermochromism Quentin Benito, a Xavier F. Le Goff, b Gregory Nocton, b Alexandre Fargues, c Alain Garcia,
More informationSynthesis of 2 ) Structures by Small Molecule-Assisted Nucleation for Plasmon-Enhanced Photocatalytic Activity
Electronic Supplementary Material (ESI) for ChemComm. This journal is The Royal Society of Chemistry 2015 Electronic Supplementary Information Synthesis of Au@UiO-66(NH 2 ) Structures by Small Molecule-Assisted
More informationZiessel a* Supporting Information (75 pages) Table of Contents. 1) General Methods S2
S1 Chemistry at Boron: Synthesis and Properties of Red to Near-IR Fluorescent Dyes based on Boron Substituted Diisoindolomethene Frameworks Gilles Ulrich, a, * Sebastien Goeb a, Antoinette De Nicola a,
More informationDetection of toxic mercury ions using a ratiometric CdSe/ZnS nanocrystal sensor
Supporting Information for Detection of toxic mercury ions using a ratiometric CdSe/ZnS nanocrystal sensor Leah E. Page, Xi Zhang, Ali M. Jawaid, and Preston T. Snee * Department of Chemistry, University
More informationAustralian Journal of Basic and Applied Sciences. Characteristic of Photocurable Organic/Inorganic Hybrids Utilizing Acid Proliferation Reactions
AENSI Journals Australian Journal of asic and Applied Sciences ISSN:1991-8178 Journal home page: www.ajbasweb.com Characteristic of Photocurable Organic/Inorganic Hybrids Utilizing Acid Proliferation Reactions
More informationSupporting Information
Supporting Information Photocatalytic H 2 production in aqueous solution with host-guest inclusions formed by insertion of an FeFe-hydrogenase mimic and organic dye into cyclodextrins respectively Xueqiang
More informationElectronic Supplementary Information
Electronic Supplementary Material (ESI) for Polymer Chemistry. This journal is The Royal Society of Chemistry 2015 Electronic Supplementary Information Tetraphenylethene-containing supramolecular hyperbranched
More informationSupramolecular Self-Assembly of Morphology-dependent Luminescent Ag Nanoclusters
Electronic Supplementary Material (ESI) for ChemComm. This journal is The Royal Society of Chemistry 2014 Supporting information for Supramolecular Self-Assembly of Morphology-dependent Luminescent Ag
More informationPhotopolymerization technology
Visible-Light Photoinitiating ystems for Laser Imaging Using Pyrromethene Dyes By Ahmad Ibrahim, Olga Ines Tarzi, Christian Ley and Xavier Allonas In this paper, a new three-component photoinitiating system
More informationSupporting Information
Electronic Supplementary Material (ESI) for Organic & Biomolecular Chemistry. This journal is The Royal Society of Chemistry 2016 Supporting Information Merging visible-light photoredox and copper catalysis
More informationPHYSICAL AND CHEMICAL PROPERTIES OF ATMOSPHERIC PRESSURE PLASMA POLYMER FILMS
PHYSICAL AND CHEMICAL PROPERTIES OF ATMOSPHERIC PRESSURE PLASMA POLYMER FILMS O. Goossens, D. Vangeneugden, S. Paulussen and E. Dekempeneer VITO Flemish Institute for Technological Research, Boeretang
More informationSupporting Information. for. Angew. Chem. Int. Ed. Z Wiley-VCH 2004
Supporting Information for Angew. Chem. Int. Ed. Z 54131 Wiley-VCH 2004 69451 Weinheim, Germany Angew. Chem. Int. Ed., Z. Y. Tian Z54131 Supporting Info Page 1 Supplementary Materials: Material A providing
More informationSupporting Information
Supporting Information Wiley-VCH 2008 69451 Weinheim, Germany Iridium-Catalyzed Dehydrocoupling of Primary Amine-Borane Adducts: A Route to High Molecular Weight Polyaminoboranes, Boron-Nitrogen Analogues
More informationA Novel Electroless Method for the Deposition of Single-Crystalline Platinum Nanoparticle Films On
Supplementary Information A Novel Electroless Method for the Deposition of Single-Crystalline Platinum Nanoparticle Films On an Organic Solid Matrix in the Presence of Gold Single Crystals Khaleda Banu,,,*
More informationHomogeneous Photoredox System for Hydrogen Production by Solar Energy
Homogeneous Photoredox System for Hydrogen Production by Solar Energy M. Gohn and N. Getoff I n s t i t u t f ü r Theoretische Chemie u n d S t r a h l e n c h e m i e d e r U n i v e r s i t ä t W i e
More informationInfrared Spectroscopy as a Tool to Monitor Radiation Curing
16 Infrared Spectroscopy as a Tool to Monitor Radiation Curing Marco Sangermano 1, Patrick Meier 2 and Spiros Tzavalas 2,* 1 Politecnico di Torino 2 ABB Corporate Research 1 Italy 2 Switzerland 1. Introduction
More informationSupporting Information
Supporting Information Copyright Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, 2013 ph-controlled Reversible Formation of a Supramolecular Hyperbranched Polymer Showing Fluorescence Switching Bingran
More informationRaman spectroscopy of phthalocyanines and their sulfonated derivatives
Journal of Molecular Structure 744 747 (2005) 481 485 www.elsevier.com/locate/molstruc Raman spectroscopy of phthalocyanines and their sulfonated derivatives B. Brożek-Płuska*, I. Szymczyk, H. Abramczyk
More informationReal-time UV cure monitoring
Real-time UV cure monitoring - Dielectric and infrared spectroscopy analyses show close linear correlation - Khalid Zahouily, Christian Decker, Erwin Kaisersberger, Michael Gruener. The photopolymerization
More informationSupporting Information
Supporting Information Nano CuFe 2 O 4 as a Magnetically Separable and Reusable Catalyst for the Synthesis of Diaryl / Aryl Alkyl Sulfides via Cross-Coupling Process under Ligand Free Conditions Kokkirala
More information5. Photochemistry of polymers
5. Photochemistry of polymers 5.1 Photopolymerization and cross-linking Photopolymerization The fundamental principle of photopolymerization is based on the photoinduced production of a reactive species,
More informationHydrogen Evolution on InSb Semiconductor in Liquid Ammonia (223 K)
Portugaliae Electrochimica Acta 20 (2002) 199-205 PORTUGALIAE ELECTROCHIMICA ACTA Hydrogen Evolution on InSb Semiconductor in Liquid Ammonia (223 K) C. Mathieu, O. Seitz, A.-M Gonçalves *, M. Herlem, A.
More informationRadical Initiation 2017/2/ ) Thermal Decomposition of Initiators
adical Initiation Production of radicals (from initiator) to initiate chain polymerization. A variety of initiator systems can be used to bring about the radical polymerization. 1) Thermal Decomposition
More informationApplication of IR Raman Spectroscopy
Application of IR Raman Spectroscopy 3 IR regions Structure and Functional Group Absorption IR Reflection IR Photoacoustic IR IR Emission Micro 10-1 Mid-IR Mid-IR absorption Samples Placed in cell (salt)
More informationEfficient Hydrogen Evolution. University of Central Florida, 4000 Central Florida Blvd. Orlando, Florida, 32816,
Electronic Supplementary Material (ESI) for Energy & Environmental Science. This journal is The Royal Society of Chemistry 2017 MoS 2 /TiO 2 Heterostructures as Nonmetal Plasmonic Photocatalysts for Highly
More informationGarret M. Miyake*,, and Jordan C. Theriot INTRODUCTION
This is an open access article published under an ACS AuthorChoice License, which permits copying and redistribution of the article or any adaptations for non-commercial purposes. pubs.acs.org/macromolecules
More informationSupporting Information
A General Synthetic Route to Polycyclic Aromatic Dicarboximides by Palladium-Catalyzed Annulation Reaction Supporting Information Kazutaka Shoyama, Magnus Mahl, Sabine Seifert, and Frank Würthner *,, Institut
More informationTEM image of derivative 1 and fluorescence spectra of derivative 1 upon addition of
Electronic Supplementary Material (ESI) for Green Chemistry. This journal is The Royal Society of Chemistry 2016 Supramolecular ensemble of PBI derivative and Cu 2 O NPs: Potential photo catalysts for
More informationELECTRONIC SUPPLEMENTARY INFORMATION
Electronic Supplementary Material (ESI) for Photochemical & Photobiological Sciences. This journal is The Royal Society of Chemistry and Owner Societies 2017 ELECTRONIC SUPPLEMENTARY INFORMATION Fabiano
More informationHaiyang Sun, Huimin Guo,* Wenting Wu, Xin Liu, Jianzhang Zhao*
Electronic Supplementary Information for: Coumarin phosphorescence observed with ^ Pt(II) bisacetylide complex and its applications for luminescent oxygen sensing and triplet-triplet-annihilation based
More informationTechniques useful in biodegradation tracking and biodegradable polymers characterization
Techniques useful in biodegradation tracking and biodegradable polymers characterization Version 1 Wanda Sikorska and Henryk Janeczek 1 Knowledge on biodegradable polymers structures is essential for the
More informationCu 2 O/g-C 3 N 4 nanocomposites: An insight into the band structure tuning and catalytic efficiencies
Electronic Supplementary Material (ESI) for Nanoscale. This journal is The Royal Society of Chemistry 216 Cu 2 O/g-C 3 N 4 nanocomposites: An insight into the band structure tuning and catalytic efficiencies
More informationSupporting Information:
Supporting Information: Visible Light Initiated Thiol-Michael Addition Polymerizations with Coumarin-based Photo-base Generators, Another Photoclick Reaction Strategy Xinpeng Zhang, Weixian Xi, Chen Wang,
More informationFormerly address: UHA-ENSCMu, 3, rue Alfred Werner, Mulhouse, France.
Molecules 215, 2, 721-7221; doi:1.339/molecules24721 Review PE ACCESS molecules ISS 142-349 www.mdpi.com/journal/molecules Recent Developments of Versatile Photoinitiating Systems for Cationic Ring pening
More informationELECTRONIC SUPPLEMENTARY INFORMATION
Electronic Supplementary Material (ESI) for Dalton Transactions. This journal is The Royal Society of Chemistry 2017 ELECTRONIC SUPPLEMENTARY INFORMATION Non- symmetric, potentially redox non- innocent
More informationMechanistic Kinetic Modeling of Thiol Michael Addition Photopolymerizations via Photocaged Superbase Generators: An Analytical Approach
Supporting Information Mechanistic Kinetic Modeling of Thiol Michael Addition Photopolymerizations via Photocaged Superbase Generators: An Analytical Approach Mauro Claudino a, Xinpeng Zhang a, Marvin
More informationph-depending Enhancement of Electron Transfer by {001} Facet-Dominating TiO 2 Nanoparticles for Photocatalytic H 2 Evolution under Visible Irradiation
S1 ph-depending Enhancement of Electron Transfer by {001} Facet-Dominating TiO 2 Nanoparticles for Photocatalytic H 2 Evolution under Visible Irradiation Masato M. Maitani a *, Zhan Conghong a,b, Dai Mochizuki
More informationHybridization of Nickel Catalysis and Photoredox Catalysis. Literature seminar#1 B4 Hiromu Fuse 2017/02/04(Sat)
Hybridization of Nickel Catalysis and Photoredox Catalysis Literature seminar#1 B4 Hiromu Fuse 2017/02/04(Sat) Introduction Novel cross coupling was reported! Highly selective sp 3 C-H functionalization!
More informationSupplementary Materials
Supplementary Materials Sample characterization The presence of Si-QDs is established by Transmission Electron Microscopy (TEM), by which the average QD diameter of d QD 2.2 ± 0.5 nm has been determined
More informationElectronic Supplementary Information (ESI) for
Electronic Supplementary Material (ESI) for Energy & Environmental Science. This journal is The Royal Society of Chemistry 2016 Electronic Supplementary Information (ESI) for Highly water- soluble three-
More informationIR LASER-INDUCED CARBOTHERMAL REDUCTION OF TITANIUM MONOXIDE: CARBON- PHASE SHIELD TO NANOSIZED TiO OXIDATION
IR LASER-INDUCED CARBOTHERMAL REDUCTION OF TITANIUM MONOXIDE: CARBON- PHASE SHIELD TO NANOSIZED TiO OXIDATION Věra JANDOVÁ a, Zdeněk BASTL b, Jan ŠUBRT c, Josef POLA a a Institute of Chemical Process Fundamentals,
More informationElectronic Supplementary Information. Nanoscaled porphyrinic metal-organic frameworks: photosensitizer delivery systems for. photodynamic therapy
Electronic Supplementary Material (ESI) for Journal of Materials Chemistry B. This journal is The Royal Society of Chemistry 2017 Electronic Supplementary Information Nanoscaled porphyrinic metal-organic
More informationWelcome to Organic Chemistry II
Welcome to Organic Chemistry II Erika Bryant, Ph.D. erika.bryant@hccs.edu Class Syllabus 3 CHAPTER 12: STRUCTURE DETERMINATION 4 What is this solution Soda Tea Coffee??? 5 What is this solution Soda Tea
More informationThe near-infrared spectra and distribution of excited states of electrodeless discharge rubidium vapour lamps
The near-infrared spectra and distribution of excited states of electrodeless discharge rubidium vapour lamps Sun Qin-Qing( ) a)b), Miao Xin-Yu( ) a), Sheng Rong-Wu( ) c), and Chen Jing-Biao( ) a)b) a)
More informationJulien Poly 37 years old
Julien Poly 37 years old IS2M - UHA/CNRS 15 rue Jean Starcky 68057 Mulhouse France julien.poly@uha.fr +33 (0)6 03 58 97 19 CURRENT POSITION Assistant Professor Institut de Science des Matériaux de Mulhouse
More informationSupporting Information
Supporting Information Dynamic Interaction between Methylammonium Lead Iodide and TiO 2 Nanocrystals Leads to Enhanced Photocatalytic H 2 Evolution from HI Splitting Xiaomei Wang,, Hong Wang,, Hefeng Zhang,,
More informationBlending conjugated polymers without phase separation for fluorescent colour tuning of polymeric materials through FRET
Electronic Supplementary Material (ESI) for ChemComm. This journal is The Royal Society of Chemistry 2014 Supplementary Information Blending conjugated polymers without phase separation for fluorescent
More informationSynthesis of a Radical Trap
Chemistry Catalyzed oxidation with hydrogen peroxide Trapping of a free radical (spin trapping) Technique Acquisition and interpretation of ESR spectra Radical trap molecule that reacts with short-lived
More informationModeling of Photoinitiation of Thick Polymers Illuminated with Polychromatic Light
Modeling of Photoinitiation of Thick Polymers Illuminated with Polychromatic Light Alec Scranton, Nicole Stephenson, and Dane Kriks University of Iowa Department of Chemical and Biochemical Engineering
More informationSupporting information. An improved photo-induced fluorogenic alkene-tetrazole reaction for protein labeling
Supporting information An improved photo-induced fluorogenic alkene-tetrazole reaction for protein labeling X. Shang, 1 R. Lai, 1,3 X. Song, 1 H. Li, 1,3 W. Niu, 2 and J. Guo 1 * 1. Department of Chemistry,
More informationSupporting Information. Designing porphyrinic covalent organic frameworks for the photodynamic inactivation of bacteria Řež, Czech Republic
Supporting Information Designing porphyrinic covalent organic frameworks for the photodynamic inactivation of bacteria Jan Hynek, a,b Jaroslav Zelenka, c Jiří Rathouský, d Pavel Kubát, d Tomáš Ruml, c
More informationProtein-based Sensitive, Selective and Rapid Fluorescence Detection of Picric Acid in Aqueous Media
Electronic Supplementary Material (ESI) for Analytical Methods. This journal is The Royal Society of Chemistry 2014 Supplementary information for Protein-based Sensitive, Selective and Rapid Fluorescence
More informationLecture 6: Physical Methods II. UV Vis (electronic spectroscopy) Electron Spin Resonance Mossbauer Spectroscopy
Lecture 6: Physical Methods II UV Vis (electronic spectroscopy) Electron Spin Resonance Mossbauer Spectroscopy Physical Methods used in bioinorganic chemistry X ray crystallography X ray absorption (XAS)
More informationPhotocure Reactions of Photoreactive Prepolymers with Cinnamate Groups
Photocure Reactions of Photoreactive Prepolymers Bull. Korean hem. Soc. 2011, Vol. 32, No. 3 993 DI 10.5012/bkcs.2011.32.3.993 Photocure Reactions of Photoreactive Prepolymers with innamate Groups Whan
More informationSynergistic Effect of Hydroxyl-containing Acrylates in Epoxide-Acrylate Hybrid Photopolymerizations Abstract Introduction Experimental Materials
Synergistic Effect of Hydroxyl-containing Acrylates in Epoxide-Acrylate Hybrid Photopolymerizations Gbenga I. Ajiboye, Julie L. P. Jessop* Department of Chemical & Biochemical Engineering, University of
More informationSupporting Information
Supporting Information Wiley-VCH 2007 69451 Weinheim, Germany Carbene Activation of P 4 and Subsequent Derivatization Jason D. Masuda, Wolfgang W. Schoeller, Bruno Donnadieu, and Guy Bertrand * [*] Dr.
More informationPHOTO-REACTION OF IONIC BONDING PHOTOSENSITIVE POLYIMIDE
Journal of Photopolymer Science and Technology Volume 5, Number 2 (1992) 343-350 PHOTO-REACTION OF IONIC BONDING PHOTOSENSITIVE POLYIMIDE MASAO TOMIKAWA, MASAYA ASANO, GENTARO OHBAYASHI, HIR00 HIRAMOTO
More informationTsuji Trost N-Allylation with Allylic Acetates by Using a Cellulose Palladium Catalyst
University of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln U.S. Environmental Protection Agency Papers U.S. Environmental Protection Agency 2012 Tsuji Trost N-Allylation with Allylic
More informationInternational Journal of Modern Trends in Engineering and Research e-issn No.: , Date: April, 2016
International Journal of Modern Trends in Engineering and Research www.ijmter.com e-issn No.:2349-9745, Date: 28-30 April, 2016 Improving Stereolithography resolution Yogesh D. Patil 1, Richa A. Patil
More informationSupporting Information
Electronic Supplementary Material (ESI) for New Journal of Chemistry. This journal is The Royal Society of Chemistry and the Centre National de la Recherche Scientifique 217 Electronic Supplementary Material
More informationNovel Supercapacitor Materials Including OLED emitters
Electronic Supplementary Material (ESI) for New Journal of Chemistry. This journal is The Royal Society of Chemistry and the Centre National de la Recherche Scientifique 2015 Supporting Information Novel
More informationSUPPORTING INFORMATION
A Novel Copper Containing Photoinitiator, Copper (II) Acylphosphinate, and Its Application in Both the Photomediated CuAAC Reaction and in Atom Transfer Radical Polymerization Tao Gong, Brian J. Adzima
More informationProgram of Petrochemistry, Faculty of Science, Chulalongkorn University, Bangkok 10300, Thailand
Electronic Supplementary Material (ESI) for RSC Advances. This journal is The Royal Society of Chemistry 215 Supporting Information Fluorescent phenylethynylene Calix[4]arenes for sensing TNT in aqueous
More informationSupporting Information s for
Supporting Information s for # Self-assembling of DNA-templated Au Nanoparticles into Nanowires and their enhanced SERS and Catalytic Applications Subrata Kundu* and M. Jayachandran Electrochemical Materials
More informationSulfur-bubble template-mediated synthesis of uniform porous g-c 3 N 4 with superior photocatalytic performance
Electronic Supplementary Material (ESI) for ChemComm. This journal is The Royal Society of Chemistry 2014 Electronic Supplementary Information Sulfur-bubble template-mediated synthesis of uniform porous
More informationAn azafullerene acceptor for organic solar cells
Electronic Supplementary Material (ESI) for RSC Advances. This journal is The Royal Society of Chemistry 2014 Supporting Information An azafullerene acceptor for organic solar cells Zuo Xiao, a Dan He,
More informationElectronic Supplementary Information
Electronic Supplementary Material (ESI) for Physical Chemistry Chemical Physics. This journal is the wner Societies 217 Electronic Supplementary Information Cylcodextrin-assisted Modulation in the Photophysical
More information