Synthesis of poly(aryl amide imide)s derived from o-diphenyltrimellitic anhydride

Abstract

The synthesis and characterization of a series of novel poly (aryl amide imide) s based on odiphenyltrimellitic anhydride are described. The poly (aryl amide-imide) s having inherent viscosities of 0.39–1. 43 dL/g in N-methyl-2-pyrrolidinone at 30°C, were prepared by polymerization with aromatic diamines in N, N-dimethylacetamide and subsequent chemical imidization. All the polymers were amorphous, readily soluble in aprotic polar solvents such as DMAC, NMP, DMF, DMSO, and m-cresol, and could be cast to form flexible and tough films. The glass trsanition temperatures were in the range of 284–336°C, and the temperatures for 5% weight loss in nitrogen were above 468°C.

Keywords

poly (aryl amide imide) s / o-diphenyltrimellitic acid / synthesis

References

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