Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals, Vol.336, 223-228, 1999
Synthesis and characterisation of new copolyesterhydrazides with thermotropic properties
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.