Article Dans Une Revue New Journal of Chemistry Année : 2011

Simultaneous sol-gel and anionic photopolymerization of 3-(glycidyloxypropyl)trimethoxysilane via photobase catalysis

Résumé

Type II polyether-silica hybrid films were successfully synthesized from 3-(glycidyloxypropyl)trimethoxysilane (GPTMS) through a novel photobase-catalyzed sol-gel and anionic polymerization using an alpha-amino acetophenone derivative as a tertiary amine photogenerator. We report here some characterization evidence establishing that the hybrid precursor undergoes two different polymerization reactions in a single step. FTIR analysis as well as solid-state NMR ((13)C, (29)Si) shed light onto the tandem formation of the silica network and the polyether chains. The prominent role played by alpha-amino acetophenone in the dual catalysis was also highlighted by comparison with other O-acyloxime-based photobase generators.

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Dates et versions

hal-04471972 , version 1 (21-02-2024)

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Abraham Chemtob, François Courtecuisse, Céline Croutxé-Barghorn, Séverinne Rigolet. Simultaneous sol-gel and anionic photopolymerization of 3-(glycidyloxypropyl)trimethoxysilane via photobase catalysis. New Journal of Chemistry, 2011, 35 (9), pp.1803-1808. ⟨10.1039/c1nj20320g⟩. ⟨hal-04471972⟩
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