东华大学学报（英文版）2008，Vol.25Issue(4)：405-407,3.
Isothermal Crystallization Behavior of Biodegradable Poly (butylene succinate-co-terephthalate)(PBST) Copolyesters at High Undercoolings
Isothermal Crystallization Behavior of Biodegradable Poly (butylene succinate-co-terephthalate)(PBST) Copolyesters at High Undercoolings
XU Xin-jian 1LI Fa-xue 1LUO Sheng-li 1YU Jian-yong1
作者信息
- 1. College of Textiles,Donghua University,Shanghai 201620,China
- 折叠
摘要
Abstract
Poly(butylene succinate-co-terephthalate)(PBST)copolyesters were prepared by polycondensation.The isothermal crystallization behavior of the as-prepared copolyesters was investigated by depolarized light intensity(DLI)at high undercoolings.According to Avrami equation,the exponent n,independent of the crystallization temperature,is at a range of 2.5 to 3.4,which probably corresponds to the heterogeneous nucleation and a 3-dimensional spherulitic growth.The maximum crystallization rate,very useful to polymer processing,was foundat about 90℃ based on the half-crystallization time t1/2 analysis.关键词
PBSTcopolyesters/DLI/isothermal crystallization/high undercoolingsKey words
PBSTcopolyesters/DLI/isothermal crystallization/high undercoolings分类
化学化工引用本文复制引用
XU Xin-jian,LI Fa-xue,LUO Sheng-li,YU Jian-yong..Isothermal Crystallization Behavior of Biodegradable Poly (butylene succinate-co-terephthalate)(PBST) Copolyesters at High Undercoolings[J].东华大学学报（英文版）,2008,25(4):405-407,3.
