Characterization and degradation of poly(methylphenylsiloxane)-poly(methyl methacrylate) interpenetrating polymer networks

被引：0
|
作者：
Chang, TC [1 ]
Wu, KH
Liao, CL
Wang, GP
机构：
[1] Chung Cheng Inst Technol, Dept Appl Chem, Tao Yuan 33509, Taiwan
[2] Chung Shan Inst Sci & Technol, Chem Syst Res Div, Tao Yuan 32526, Taiwan
来源：
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY | 1999年 / 37卷 / 11期
关键词：
poly(methylphenylsiloxane); poly(methyl methacrylate); interpenetrating network; spin-spin relaxation; degradation;
D O I：
10.1002/(SICI)1099-0518(19990601)37:11<1717::AID-POLA18>3.0.CO;2-I
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Poly(methylphenylsiloxane)-poly(methyl methacrylate) interpenetrating polymer networks (PMPS-PMMA IPNs) were prepared by in situ sequential condensation of poly(methylphenylsiloxane) with tetramethyl orthosilicate and polymerization of methyl methacrylate. PMPS-PMMA IPNs were characterized by infrared (IR), differential scanning calorimetry (DSC), and Si-29 and C-13 nuclear magnetic resonance (NMR). The mobility of PMPS segments in IPNs, investigated by proton spin-spin relaxation T-2 measurements, is seriously restricted. The PMPS networks have influence on the average activation energy E-a,(av) of MMA segments in thermal degradation at initial conversion. (C) 1999 John Wiley & Sons, Inc.
引用
收藏
页码：1717 / 1724
页数：8
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