Synthesis and Properties of Novel Fluorinated Polyamides Based on 2??Trifluoromethyl??4, 4′??Diaminodiphenylether

CP Yang, RS Chen, KH Chen…

Index: Yang, Chin-Ping; Chen, Ruei-Shin; Chen, Kuei-Hung; Chen, Ya-Ping Journal of the Chinese Chemical Society, 2002 , vol. 49, # 5 p. 927 - 934

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Citation Number: 8

Abstract

Abstract A series of soluble fluorinated polyamides (4a-h) were synthesized from 2- trifluoromethyl-4, 4′-diaminodiphenylether (2) with various aromatic diacids (3a-c) and imide-containing diacids (3d-h) via direct polycondensation with triphenyl phosphite and pyridine. Diamine 2 was prepared through nucleophilic substitution reaction of 2-chloro-5- nitrobenzotrifluoride and 4-nitrophenol in the presence of anhydrous K 2 CO 3 to yield the ...