高等规聚丁烯-1晶型转变研究进展  

Research progress on crystal form transformation of high isotactic polybutene-1

作　　者：杜改平 DU Gai-ping(Sinopec Beijing Research Institute of Chemical Industry,Beijing 100013,China)

机构地区：[1]中石化(北京)化工研究院有限公司,北京100013

出　　处：《现代化工》2024年第7期79-83,共5页Modern Chemical Industry

摘　　要：综述了聚丁烯-1晶型Ⅱ到晶型Ⅰ的转变机理,包括固-固转变理论、内应力-系带链分子理论和转变中间相(mesophase)理论;总结了分子质量、共聚单体、溶剂、共混物、成核剂和加工工艺等条件因素对结晶和晶型转变的主要影响。未来仍需深入研究共聚单体对晶型转变的影响机制,加强高分子类聚丁烯-1成核剂的开发。The transition mechanism of polybutene-1 crystal formⅡto crystal formⅠis reviewed,including the solid-solid transition theory,the internal stress-tie chain molecular theory,and the transition mesophase theory.The main effects of molecular weight,comonomers,solvent,blendings,nucleating agents and processing technology on crystallization and crystal form transformation are summarized.It is still necessary to study the influence mechanism of comonomers on the transformation of crystal form,and strengthen the development of nucleating agents for polybutene-1 polymerization.

关 键 词：聚丁烯-1 结晶 晶型转变 固-固转变机理 转变中间相 

分 类 号：O632.12[理学—高分子化学]