【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 ,介绍了笔者在这一领域的最新研究成果更多还原

【Abstract】 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.更多还原