Ester-amide exchange in blends of liquid-crystalline copolyester and polyamide 6

被引：0
|
作者：
Ho, JC [1 ]
Wei, KH [1 ]
机构：
[1] Natl Chiao Tung Univ, Dept Mat Sci & Engn, Hsinchu 30049, Taiwan
来源：
JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS | 2000年 / 38卷 / 16期
关键词：
copolyester; polyamide; 6; exchange; activation energy; kinetics;
D O I：
10.1002/1099-0488(20000815)38:16<2124::AID-POLB60>3.0.CO;2-6
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
The kinetics of the ester-amide exchange in solution blends of the random liquid-crystalline polyester copoly(oxybenzoate-terephthalate) (P64) and polyamide 6 (PA6) were studied with carbon nuclear magnetic resonance. With second-order reversible reactions assumed, the activation energy of the ester-amide interchange in 30/70, 50/50, and 70/30 P64/PA6 blends were all about 24.0 kcal/mol. The pre-exponential factors for the ester-amide exchange in 30/70, 50/50, and 70/30 P64/PA6 blends were 2.01 x 10(11), 2.59 x 10(10), and 2.74 x 10(12) min(-1), respectively. (C) 2000 John Wiley & Sons, Inc.
引用
收藏
页码：2124 / 2135
页数：12
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