THERMAL-BEHAVIOR OF THE PET RODRUN-3000 SYSTEM

The crystallization behaviour of poly(ethylene terephthalate) (PET) an d its blends with a liquid crystal polymer (Rodrun 3000) was studied b y differential scanning calorimetry (d.s.c.), under both non-isotherma l and isothermal conditions. The theories of Ozawa and Avrami were app lied to study the kinetics of non-isothermal and isothermal crystalliz ation respectively. In both cases it was found that a very low percent age of a thermotropic Liquid crystal polymer (TLCP) determines an incr ease in the overall crystallization rate, while increasing the amount of TLCP results in a progressive decrease in the crystallization rate and the melting temperature. However, the crystallinity of PET in the blends was found to increase on increasing the TLCP content. (C) 1998 Elsevier Science Ltd. All rights reserved.