聚酯/热致液晶聚合物体系的非等温结晶动力学研究  

NON-ISOTHERMAL CRYSTALLIZATION KINETICS OF POLYESTER BLENDS CONTAINING A THERMOTROPIC LIQUID CRYSTALLINE POLYMER

作　　者：何小军[1] 梁伯润[1] 陈稀[1] 屈凤珍 潘利华[1] 

机构地区：[1]中国纺织大学高分子材料工程系,上海200051

出　　处：《合成技术及应用》1997年第2期5-11,共7页Synthetic Technology & Application

基　　金：国家自然科学基金;燕山石化研究院资助

摘　　要：热致性液晶共聚酯PET／60PHB组分对PET及PBT在两种共混体系中的非等温结晶行为的影响用DSC方法进行了研究，并用Ozawa方法处理了动力学数据。随共混体系中LCP含量的增加，PET的Avrami指数值n趋于降低而PBT的n值趋于增加，表明在非等混结晶条件下．对不同组成的共混物体系有着不同的成核和晶体生长的机理．The effect of the thermotropic copolyester of PET/60 PHB on the non-isothermal crystallization behavior of both the PET and PBT in the blends has been studied by DSC method.The kinetic data was treated by Ozawa approach. With increasing the content of LCP in the blends the values of Avarami exponent n decrease for PET whereas increase for PBT, implying a different mechanism of nucleation and growth of crystal occured during the non-isother-mal crystallization conditions.

关 键 词：液晶 共混 结晶 动力学 共聚酯 

分 类 号：O631.13[理学—高分子化学] TQ323.402[理学—化学]