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.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
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)
