Title: STRUCTURE AND PROPERTIES OF PVA/SiO”2 INTERPENETRATING POLYMER NETWORK MATERIALS PREPARED BY THE SOL-GEL METHOD
Page Range: p.97-100
Author(s): Feng-Yu Quan; Li-Li Chen; Yan-Zhi Xia; Quan Ji
File size: 167K
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Journal: Polymers and Polymer Composites
Issue Year: ppc
Volume: 17
Issue No: No.2
Abstract
Organic-inorganic interpenetrating polymer network(IPN) materials were prepared by hydrolysis and condensation of tetraethoxysilane(TEOS) in PVAl solution. The structure and morphology of the IPNs were investigated by FTIR spectroscopy and TEM. The thermal properties were examined by TGA and DSC. FTIR spectroscopy showed the formation of Si-O-C and Si-O-Si bonds in the system. TEM demonstrated a homogeneous dispersion of silica in the PVAl matrix when the amount of TEOS added was appropriate. DSC and TGA revealed that, compared with pure PVAl films, the hybrid films exhibited a higher Tg and high thermal stability. 17 refs.
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