TY - JOUR A1 - Hamciuc, Elena A1 - Hamciuc, Corneliu A1 - Bruma, Maria A1 - Stoleriu, Andre A1 - Schulz, Burkhard T1 - Poly(hydrazide-ester)s and poly(1,3,4-oxadiazole-ester)s containing pendent phenoxy groups N2 - A series of new arornatic 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. Y1 - 1997 UR - https://publishup.uni-potsdam.de/frontdoor/index/index/docId/24333 ER -