等规聚丙烯DSC熔融双峰的成因  

STUDY ON THE DSC DOUBLE ENDOTHERMS OF ISOTACTIC POLYPROPYLENE

作　　者：朱新远[1] 田国华[1] 王国明 颜德岳[1] 闫东航[2] 周恩乐[2] 

机构地区：[1]上海交通大学化学化工学院,上海200240 [2]中国科学院长春应用化学研究所,吉林长春130022

出　　处：《高分子材料科学与工程》2001年第1期75-78,共4页Polymer Materials Science & Engineering

基　　金：中国科学院高分子物理联合开放实验室基金资助项目

摘　　要：论述了多种产生熔融双峰的情况及原因 ,对最近研究等规聚丙烯 DSC熔融双峰的进展进行了评述。最后 。In this paper, various origins of the double melting endotherms of isotactic polypropylene are summarized according to the recent advances. In particular, three categories based on different thermal treatment condition:quenching, annealing and isothermal crystallization, are mainly reviewed and discussed. The double melting endotherms may result from different crystalline forms, two kind of lamellar thickness, or various morphologies, etc.. Thus the origin of double melting endotherms depends upon different crystallization conditions. At last, the recent research outcomes of the authors in this field are also introduced.

关 键 词：熔融双峰 淬火 退火等温结晶 等规聚丙烯 DSC 

分 类 号：O632.12[理学—高分子化学]