Dielectric Properties of Thermotropic Polymer Liquid Crystals

摘要

Dielectric relaxation spectrometry is a useful tool to study molecular dynamics of macromolecula systems. Theoretical principles as well as experimental techniques are analyzed from the point of view of their capabilities. Results are reported for PET/xPHB, where PET = poly(ethylene terephthalate), PHB = p-hydroxybenzoic acid (the liquid crystalline component) and x is the mole fraction of PHB in the copolymers.