%0 Journal Article
%T PROPERTIES OF THE ACTIVE CENTERS ON TiCl4/MgCl2 CATALYSTS FOR OLEFIN POLYMERIZATION<br>TiCl4/MgCl2负载型烯烃聚合催化剂活性中心性质的研究
%A FAN Zhi-qiang
%A FENG Lin-xian
%A YANG Shi-lin
%A <br>范志强
%A 封麟先
%A 杨士林
%J 高分子学报
%D 1993
%I 
%X The number of active centers of 1-octene polymerization systems catalyzed by TiCl4/Mg-Cl2-AlR3 was determined by quenching with acetyl chloride,and the effects of cocatalyst and organic electron donors on the polymerization rate,the number of active centers and the propagation rate constant were studied. Combining with the study of the polymer molecular weight distribution by a multi-peak fitting method,the presence of 3 or 4 kinds of active center with different properties was evidenced. It is found that electron donors can selectively change the properties of certain kinds of active center.
%K 钛
%K 镁
%K 催化剂
%K 配位
%K 聚合
%K 活性中心
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=6579068328FE643F&jid=15971983683C7643EE80F1CE621DEB60&aid=6911575C72E9E05B&yid=D418FDC97F7C2EBA&iid=B31275AF3241DB2D&sid=09F7C8D609E885AE&eid=780091CB32840698&journal_id=1000-3304&journal_name=高分子学报&referenced_num=1&reference_num=7