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KMID : 1059519870310060590
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Journal of the Korean Chemical Society
1987 Volume.31 No. 6 p.590 ~ p.600
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Syntheses, Solubilities and Thermal Properties of Polyamide-imides containing Bis(p-carbonylphenyl)diphenylsilane units
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Kim Un-Sik
Sung Yong-Kiel
Yoon Koo-Sik
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Abstract
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Silicone-containing polyamide-imides were prepared from bis(p-chlorocarbonylphenyl)diphenylsilane (BCCDPS), pyromellitic dianhydride(PMDA) and diamines. The thermal characteristics of the above polymers had been carefully studied using a thermogravimetric analyzer. The thermal stability of polymer was decreased with increasing contents of bis(p-carbonylphenyl)diphenylsilane units(BCDPS). The effect of diamine on thermal stability of polymer led benzidine > m-phenylenediamine> 4,4'-diaminodiphenyl ether > 4,4'-diaminodiphenyl sulfone. The activation energy of degradation of polymer obtained by Friedman method increased as the contents of BCDPS in the polymer decreased. The degradation temperature of polymers generally increased as the activation energy increased. The solubility of polymer increased as the content of BCDPS increased except polymers prepared with benzidine.
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