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Preparation of novel copoly(bis[4-(3-aminophenoxy)phenyl]sulfone/ 3,3′,4,4′-benzophenonetetracarboxyl/ pyromellite)imide derivatives

✍ Scribed by Jong-Young Jeon


Publisher
John Wiley and Sons
Year
2003
Tongue
English
Weight
101 KB
Volume
88
Category
Article
ISSN
0021-8995

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✦ Synopsis


Abstract

Copolyimide derivatives were prepared from two carboxylic dianhydrides [3,3′,4,4′‐benzophenone tetracarboxylic dianhydride (BTDA) and pyromellitic anhydride (PMDA)] and a single diamine (bis[4‐(3‐aminophenoxy)phenyl]sulfone [BAPS]) following one‐step polymerization. Copolymers could be arranged in sequence through different molar ratios of dianhydride compounds. These polymers were characterized by viscosity, thermal and mechanical properties, solubility, etc. To understand the behavior of the properties, according to the ratio of the dianhydride compound, a copolymer having various properties could be obtained. Further, it was proved that their properties could be determined from the compositions. The solubility of copolyimides with a large molecular weight was moderately improved. © 2003 Wiley Periodicals, Inc. J Appl Polym Sci 88: 853–859, 2003


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