Synthesis and characterisation of new copolyesterhydrazides with thermotropic properties

被引：0
|
作者：
de Prisco, N
Laurienzo, P
Malinconico, M
Roviello, A
Volpe, MG
机构：
[1] CNR, Ist Ric & Tecnol Mat Plast, I-80072 Arco, Italy
[2] Univ Naples Federico II, Dipartimento Chim, I-80100 Naples, Italy
来源：
MOLECULAR CRYSTALS AND LIQUID CRYSTALS SCIENCE AND TECHNOLOGY SECTION A-MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 1999年 / 336卷
关键词：
polyesters; polyhydrazides; thermotropicity;
D O I：
10.1080/10587259908026034
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
Synthesis, chemical and chemical-physical characterisation of new thermotropic copolymers containing ester and hydrazidic units are reported. The polymers consist of polyester blocks linked together through p-phenylenhydrazidic units. By varying the nature and the relative percentage of the comonomers in the polyester block, it is possible to obtain thermotropic copolymers with melting temperatures well below the degradation, with a good range of stability of the mesophase, and with heat resistance properties similar to those of homopolymeric polyhydrazides.
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收藏
页码：223 / +
页数：7
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