✦ LIBER ✦

Synthesis and imidization of poly(amic methyl ester)s

✍ Scribed by Wenxi Huang; Yuejin Tong; Jiping Xu; Mengxian Ding

Publisher: John Wiley and Sons
Year: 1997
Tongue: English
Weight: 224 KB
Volume: 35
Category: Article
ISSN: 0887-624X
DOI: 10.1002/(sici)1099-0518(19970115)35:1<143::aid-pola15>3.0.co;2-k

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✦ Synopsis

The synthesis and characterization of a series of poly(amic methyl ester)s from five aromatic dianhydrides and a diamine, 4,4-oxydianiline (ODA), are described. These poly(amic ester)s are obtained by the low-temperature polycondensation from dianhydrides derived diester-diacyl chlorides and ODA in DMAc solution with the inherent viscosities in the 0.5-0.9 dL/g range. These precursors are readily soluble in aprotic solvents. A detailed thermal study of the imidization process is presented, based on dynamic and isothermal TGA measurements, FTIR spectroscopy, and dynamic mechanical analysis.

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