超临界烯烃聚合的研究进展——Ⅲ.相行为  

Advances in Supercritical Polymerization of Olefins——Ⅱ.Phase Behaviors

作　　者：陈振华[1] 曹堃[1] 姚臻[1] 范荣[1] 黄志明[1] 

机构地区：[1]浙江大学材化学院化工系高分子工程研究所聚合反应工程国家重点实验室,浙江杭州310027

出　　处：《高分子材料科学与工程》2007年第1期11-15,共5页Polymer Materials Science & Engineering

基　　金：国家自然科学基金项目(20576115);教育部科学技术研究重点项目(104095);中石化资助

摘　　要：以超临界烯烃聚合为背景,在介绍超临界特征的基础上系统阐述了聚烯烃在超临界烷烃流体中的相行为。概括了聚烯烃内部结构包括种类、分子量和支化度,及超临界烷烃流体性质和第三组分的加入等对聚烯烃溶解度的影响。同时,比较了超临界烷烃流体对聚烯烃的溶胀特性及相应的熔点变化。With the background of supercritical olefins polymerization, The phase behavior of polyolefins in supercritical hydrocarbons was systemically introduced based on the characters of supercritical fluids. The effects of different polymer structure such as molecular weight, backbone branching on the phase behavior were generalized. Also, the effects of supercritical solvent quality and third component were introduced. Meantime, the solubility and diffusion of supercritical hydrocarbon in polyolefins were introduced and the impact of supercritical fluids on melting point of polymer was also included.

关 键 词：超临界流体 相行为 聚烯烃 烷烃类 

分 类 号：TQ316.33[化学工程—高聚物工业]