Fluorinated Copolymer-Oxide Hybrids |
| |
Authors: | Eric P. Bescher Atif Noori John D. Mackenzie |
| |
Affiliation: | (1) Department of Materials Science and Engineering, School of Engineering and Applied Science, University of California Los Angeles, Los Angeles, CA 90095, USA |
| |
Abstract: | A fluorinated copolymer/metal oxide hybrid is fabricated by refluxing a high hydroxyl content fluorinated copolymer with tetraethoxysilane. The resulting organic-inorganic hybrids are transparent throughout the entire compositional range if processed with HCl as a catalyst. They exhibit a continuous variation in hardness, hydrophobicity, and abrasion resistance, intermediary between the properties of the pure polymer and that of a silica gel. The catalyst has a strong influence over the microstructure of the hybrid. 29Si MAS-NMR indicates the presence of highly condensed silica clusters within the structure of the hybrid. If a Nd(III) alkoxide is used instead of TEOS, a Nd 3+-doped fluoropolymer is obtained. These results indicate that when a fluorinated copolymer contains groups amenable to hydrolysis and condensation, cross-linking with a metal alkoxide is possible, leading to an interesting families of hybrids. |
| |
Keywords: | fluorinated copolymers Lumiflon fluorinated hybrids Nd-doped hybrids organic-inorganic hybrids |
本文献已被 SpringerLink 等数据库收录! |
|