超临界烯烃聚合的研究进展——(Ⅰ)聚合工艺及工业应用  

ADVANCES IN SUPERCRITICAL POLYMERIZATION OF OLEFINS ——(Ⅰ) POLYMERIZATION PROCESSES AND INDUSTRIAL APPLICATIONS

作　　者：尤侯平[1] 曹堃[2] 范荣[1] 霍志宏[2] 姚小利[1] 王齐[2] 柏基业[1] 笪文忠[1] 杨爱武[1] 王兴仁[1] 姚臻[2] 梅利[1] 陈振华[2] 

机构地区：[1]中国石化扬子石油化工股份有限公司,江苏南京210048 [2]浙江大学材料与化工学院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》2005年第4期37-41,共5页Polymer Materials Science & Engineering

基　　金：中石化和教育部科学技术研究重点项目资助(104095)

摘　　要：超临界流体是一种特殊的热力学状态,在此状态下进行烯烃聚合具有提高催化活性、拓宽氢调范围、改善颗粒形态及促进共聚等优点,特别是作为高熔体指数双峰分布聚烯烃的制备方法,近年来备受关注。文中综述了国外乙烯、丙烯均聚及共聚的超临界工艺和工业化应用现状,并对我国正在进行的超临界烯烃聚合工艺的研究进行了展望。Supercritical fluid(SCF) is a special thermodynamic state in the phase diagram of substances. Polymerizing olefin in this state will increase the catalyst activity, improve the morphology and size distribution of resulting particles, enhance the solubility and effect of hydrogen in SCF and therefore adjust the molecular weight in a broader range, and promote the copolymerization of olefins. These advantages will be helpful in developing new polyolefin products, especially double-peak molecular weight and high melting strength polypropylene, on the basis of the current polymerization technology. Polymerization of ethylene and propylene in their supercritical state and their industrialization status were reviewed in this paper and the prospects of the ongoing research in supercritical polymerization of olefins in China were discussed, too.

关 键 词：超临界聚合 聚烯烃 乙烯 丙烯 

分 类 号：TQ320.61[化学工程—合成树脂塑料工业]