Concomitant Organic-Inorganic UV-Curing Catalyzed by Photoacids

被引：81
作者：
Chemtob, Abraham [1 ]
Versace, Davy-Louis [1 ]
Belon, Cindy [1 ]
Croutxe-Barghorn, Cine [1 ]
Rigolet, Severinne [2 ]
机构：
[1] Univ Haute Alsace, CNRS UMR 7525, Dept Photochem, ENSCMu, F-68093 Mulhouse, France
[2] Univ Haute Alsace, CNRS UMR 7016, Lab Mat Porosite Controlee, ENSCMu, F-68093 Mulhouse, France
来源：
MACROMOLECULES | 2008年 / 41卷 / 20期
关键词：
D O I：
10.1021/ma801017k
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Organic-inorganic UV-curing of organosilanes containing epoxy and trialkoxysilyl functional groups in the same monomer was implemented using a diaryl iodonium salt as cationic photoinitiator. UV-generated Bronsted acids through photolytic degradation Were found to be effective in catalyzing both epoxy ring-opening polymerization and alkoxysilane sol-gel polycondensation reactions. Competition between the formation of inorganic and organic phases was kinetically studied using real-time Fourier transform infrared spectroscopy (RT-FTIR). The nature of the hybrid monomer. the effect of changing the film thickness, the type of substrate and the influence of laminated conditions oil the polymerization kinetics were assessed. Si-29 and C-13 solid state NMR measurements were also performed to investigate the structure of the UV-cured hybrid materials.
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收藏
页码：7390 / 7398
页数：9
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