Synthesis and Characterization of New Copoly(amide-imide)s Based on 1,3- bis[4,4'-(trimellitimido)phenoxy]propane and Fumaric acid

Subject Areas : Journal of the Iranian Chemical Research

Khalil Faghihi ¹ , Akram Feyzi ² , Reza Mohammadi Pour ³

1 - Department of Chemistry, Faculty of Science, Arak University, Arak, 38156, Iran
2 - Department of Chemistry, Faculty of Science, Arak University, Arak, 38156, Iran
3 - Department of Chemistry, Faculty of Science, Arak University, Arak, 38156, Iran

Received: 2009-12-25 Accepted : 2010-02-26 Published : 2010-12-31

Keywords: High performance polymers, Copoly(amide-imide)s, Direct polycondensation,

Abstract :

In this article six new copoly(amide-imide)s (11a-c) were synthesized through the directpolycondensation reaction of 1,3-bis[4,4'-(trimellitimido) phenoxy] propane (6) with 3,3'-diamino diphenyl sulfone (7), 4,4'-diaminodiphenyl ether (8) and 1,5-naphtalene (9) in thepresence of fumaric acid (10) as a second diacid in a medium consisting of N-methyl-2-pyrrolidone, triphenyl phosphite, calcium chloride and pyridine. The resulted polymers werefully characterized by means of FT-IR spectroscopy, elemental analyses, inherent viscosity, andsolubility tests. Thermal stabilities of a polymer (11a-c) were investigated by using TGA & DTGthermograms.

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