Transparent organic/inorganic hybrid sol-gel materials based on perfluorinated polymers and silica

Anna B. Wojcik; Lisa C. Klein

doi:10.1117/12.230107

15 January 1996 Transparent organic/inorganic hybrid sol-gel materials based on perfluorinated polymers and silica

Anna B. Wojcik, Lisa C. Klein

Proceedings Volume 2611, Optical Network Engineering and Integrity; (1996) https://doi.org/10.1117/12.230107
Event: Photonics East '95, 1995, Philadelphia, PA, United States

Abstract

Two types of hybrid gels based on silica and perfluorinated polymers have been prepared. The first type involves a perfluorinated polymer containing acrylate groups. Perfluoropolyether diol diacrylate (PFDA) was functionalized by reacting it with (3-mercapto-propyl) trimethoxysilane by a Michael addition. The resulting silyl derivative (PFDAS) was able to copolymerize with a silica precursor, tetraethylorthosilicate (TEOS), resulting in perfluorinated polymer/silica hybrid gels. For the second type, perfluoroalkylsilane (FAS), vinyltriethoxysilane (VTES), and TEOS were polymerized in one step. In both cases, the gels were transparent, crack-free and water repellent. Since the inorganic and organic components are covalently bonded to each other, these materials can be classified as organic/inorganic copolymers.

Citation Download Citation

Anna B. Wojcik and Lisa C. Klein "Transparent organic/inorganic hybrid sol-gel materials based on perfluorinated polymers and silica", Proc. SPIE 2611, Optical Network Engineering and Integrity, (15 January 1996); https://doi.org/10.1117/12.230107

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