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High Performance Polymers
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Poly(Hydrazide-Ester)s and Poly(1, 3, 4-Oxadiazole-Ester)s Containing Pendent Phenoxy Groups

Elena Hamciuc

Corneliu Hamciuc

Maria Bruma

Aurel Stoleriu

Institute of Macromolecular Chemistry, Iasi, Romania

Burkhard Schulz

Institute of Solid State Physics, University of Potsdam, Germany

A series of new aromatic poly(hydrazide-ester)s has been synthesized by solution polycondensation of two diacid dichlorides containing preformed ester groups with phenoxyterephthaloyl dihydrazide or with a mixture of phenoxyterephthaloyl dihydrazide with terephthaloyl-or isophthaloyl dihydrazide in N-methyl-2-pyrrolidinone. The thermal cyclization of the poly(hydrazide-ester)s gave the corresponding poly(1, 3, 4-oxadiazole-ester)s containing pendent phenoxy groups. The polymers were characterized by viscometry, solubility measurements, IR spectroscopy, differential scanning calorimetry and thermogravimetric analysis.

High Performance Polymers, Vol. 9, No. 4, 429-436 (1997)
DOI: 10.1088/0954-0083/9/4/006
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