Synthesis and characterization of silicon-containing poly(amide-amide)s

被引:0
|
作者
Joshi, MD [1 ]
Lonikar, SV [1 ]
Maldar, NN [1 ]
机构
[1] Shivaji Univ, Ctr Postgrad Studies, Dept Chem, Solapur 413003, India
关键词
bis[(4-carboxyphenyl) 4-benzamide] dimethylsilane; aromatic diamines; silicon-containing poly(amide-amide)s; solubility and thermal properties;
D O I
10.1002/1097-4628(20010228)79:9<1610::AID-APP100>3.0.CO;2-E
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
A modified new aromatic diacid, bis[(4-carboxyphenyl) 4-benzamide] dimethylsilane (TV) with preformed amide linkages and a silicon moiety was synthesized and characterized by IR, NMR, mass spectroscopy, and a physical constant. Novel poly(amide-amide)s were synthesized from IV and aromatic diamines by Yamazaki's direct polyamidation method in N-methyl pyrrolidinone. The polymers were obtained in excellent yields and showed reduced viscosities in the range of 0.42-6.15 dL/g. They were readily soluble in aprotic polar solvents. These poly(amide-amide)s showed glass-transition temperatures of 303-378 degreesC as measured by DSC and showed no weight loss below 377 degreesC in a nitrogen atmosphere. (C) 2000 John Wiley & Sons, Inc.
引用
收藏
页码:1610 / 1617
页数:8
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