Characterization and degradation of some silicon-containing polyimides

被引：35

作者：

Chang, TC ^{[1
]}

Wu, KH ^{[1
]}

机构：

[1] Chung Cheng Inst Technol, Dept Appl Chem, Tao Yuan 33509, Taiwan

来源：

POLYMER DEGRADATION AND STABILITY | 1998年 / 60卷 / 01期

关键词：

D O I：

10.1016/S0141-3910(97)00063-3

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Polysiloxaneimides (PSI) were synthesized by polycondensation of 3,3',4,4'-benzophenone tetracarboxylic dianhydride (BTDA) with oxydianiline (ODA) and amino-terminated siloxanes of varying molecular weights. The structures of the PSI copolymers were characterized by infra-red (IR), Si-29 and C-13 nuclear magnetic resonance (NMR) spectroscopies. The dynamics in the interface of PSI copolymers were investigated by proton spin-spin relaxation measurements. The apparent activation energy for degradation of PSI copolymers both in nitrogen and air was studied by thermogravimetry and compared with that of the unmodified polyimide. The activation energies of the degradation process in nitrogen decreased approximately with increasing siloxane content, whereas those in air increased. (C) 1998 Elsevier Science Limited. All rights reserved.

引用

页码：161 / 168

页数：8

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