New Poly(ether-alkyl)hydrazides: Synthesis and Characterization

A new series of poly(ether‐alkyl)oxadiazoles of general formula: with m = 3, 4, and 5 has been obtained from the corresponding polyhydrazides through thermal cyclization reaction. The polymers were characterized by infrared spectroscopy, differential scanning calorimetry, wide‐angle x‐ray analysis, and optical microscopy. The polymers were crystalline, with a crystalline texture and structural parameters strongly dependent on the value of m. The Tm's and Tg's value decreased with increasing number of CH2. © 1994 John Wiley & Sons, Inc.

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New Poly(ether-alkyl)hydrazides: Synthesis and Characterization

Abstract: ABSTRACT:A series of new acylic dichlorides were prepared from 4,4'-dihydroxybiphenyl and the ethylester of an w-Bromo alkyl-carboxylic acid. These dichlorides condensed with terephthalic dihydrazide. The resulting poly( ether-alkyl)hydrazides (PEHZ), whose general formula is: -

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References 8 publications

Novel poly(etheraroylhydrazides). An example of ?conformationally disordered crystalline? polymers

Novel poly(etheraroylhydrazides). An example of ?conformationally disordered crystalline? polymers

Thermal and structural analysis and crystallization behavior of new poly(ether‐alkyl) oxadiazoles

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