✦ LIBER ✦

Synthesis and characterization of poly(imide-sulfonamide)s

✍ Scribed by Jerry M. Adduci; Eric J. Kuckoff

Publisher: John Wiley and Sons
Year: 1990
Tongue: English
Weight: 542 KB
Volume: 41
Category: Article
ISSN: 0021-8995
DOI: 10.1002/app.1990.070410111

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✦ Synopsis

Eight novel poly (imide-sulfonamide) s have been prepared by reacting pyromellitic dianhydride and benzophenone tetracarboxylic acid dianhydride with variously substituted dianilines containing preformed sulfonamide linkages. Inherent viscosities of the prepared polymers ranged from 0.13 t o 0.53 dL/g. Four of the polymers formed tough, transparent yellow, flexible films. Glass transition temperatures, determined by differential scanning calorimetry, ranged from 103 to 249°C. Thermogravimetric analyses of the polymers showed that they have moderate thermal stability with weight losses ranging from 6.8 to 42% a t 400°C.

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