PET/PBT反应性共混物的结晶行为  

STUDY ON CRYSTALLIZATION BEHAVIOR OF PET/PBT REACTIVE BLENDS

作　　者：马敬红[1] 刘森林 梁伯润[1] 

机构地区：[1]东华大学纤维材料改性国家重点实验室,上海200051 [2]中纺投资股份有限公司,上海200120

出　　处：《高分子材料科学与工程》2003年第6期172-174,178,共4页Polymer Materials Science & Engineering

基　　金：国家自然科学基金资助课题(29774023)

摘　　要：通过FT-IR、WAXD研究了在扩链剂存在下PET/PBT反应性共混物的结晶行为,表明PET与PBT为晶相分离,随共混时间的延长,共聚酯中PBT的结晶峰逐渐减弱至消失。DSC研究表明,在190℃热处理10min后,共混物出现结晶诱导序列重整现象。The crystallization behavior of PET/PBT reactive blends with existence of PBO were studied by FT-IR and WAXD. The results show that PET and PBT crystallize separately rather than cocrystallize even after reactive blending. With increasing mixing time, the crystalline peaking of PBT becomes weaker and finally disappears. DSC results show that the crystallization induced sequential reordering phenomenon is existed for the resulted copolymer after annealing at 190 ℃ for 10 min.

关 键 词：PET PBT 反应性共混 结晶行为 结晶诱导序列重组 聚苯并噻唑 聚对苯二甲酸乙二醇酯 

分 类 号：O633.14[理学—高分子化学] O631.13[理学—化学]