高等学校化学学报Issue(9)：2014-2018,5.DOI:10.7503/cjcu20140399
本体共聚合制备丙烯/1-丁烯合金及表征
Preparation and Characterization of Propylene/1-Butene Alloy with Bulk Copolymerization
摘要
Abstract
The spherical MgCl2 supported TiCl4 catalyst( TiCl4/MgCl2/DIBP) was applied to bulk copolymeri-zation of propylene and 1-butene. The influence of comonomer feed ratio on catalyst activity and stereoregulari-ty of the copolymers were studied. The composition and properties of copolymers were investigated by 13 C nuclear magnetic resonance ( 13 C NMR ) , differential scanning calorimetry ( DSC ) , infrared ( IR ) and gel permeation chromatography(GPC). The results showed that the polymerization activity increased firstly and then decreased with the increasing 1-butene/propylene feed ratio(B/P). The highest polymerization activity was achieved at B/P=0. 26. As the 1-butene content in the copolymers increased, the melting point of the co-polymers decreased and the molecular weight distribution became narrow. Meanwhile, the mechanical proper-ties of the copolymers were improved significantly, and the transparency was gradually increased.关键词
共单体效应/丙烯/1-丁烯共聚合/本体聚合Key words
Comonomer effect/Propylene/1-butene copolymerization/Bulk polymerization分类
化学化工引用本文复制引用
张春雨,董博,张贺新,陈春海,张学全..本体共聚合制备丙烯/1-丁烯合金及表征[J].高等学校化学学报,2014,(9):2014-2018,5.基金项目
国家自然科学基金创新研究群体科学基金(批准号:50921062)资助. Supported by the Foundation for Innovative Research Groups of the National Natural Science Foundation of China(No.50921062) （批准号:50921062）
