The effect of co-catalysts on the morphology of isotactic polypropene prepared using metallocene catalyst  

作　　者：ZHANG Mingge XU Demin HONG Han GUO Cunyue HU Youliang 

机构地区：[1]State Key Lab of Engineering Plastics,Center for Molecular Science,Institute of Chemistry,Chinese Academy of Sciences,Beijing Lab of Catalysis,Key Lab ot Catalysis of China National Petroleum Corporation,Beijing 100080,China [2]Graduate School of the Chinese Academy of Sciences,Beijing 100030,China

出　　处：《Chinese Science Bulletin》2002年第10期810-813,共4页

基　　金：This work was supported by the National NaturalScience Foundation of China (Grant No. 29734141).

摘　　要：SiO2/rac-Me2Si[2-Me-4-Naph-Ind]2ZrCl2 was prepared and different co-catalysts were used in bulk polymerization of propene. The morphology of polypropene could be controlled by altering the co-catalysts. The isotactic polypropene with good morphology and high bulk density were prepared. The formation mechanism of active centers was proposed, by which the effect of co-catalysts on the morphology of polypeopene was analyzed.SiO2/rac-Me2Si[2-Me-4-Naph-Ind]2ZrCl2 was prepared and different co-catalysts were used in bulk polymerization of propene. The morphology of polypropene could be controlled by altering the co-catalysts. The isotactic polypropene with good morphology and high bulk density were prepared. The formation mechanism of active centers was proposed, by which the effect of co-catalysts on the morphology of polypeopene was analyzed.

关 键 词：METALLOCENE CO-CATALYST SUPPORTING MORPHOLOGY of polypropene. 

分 类 号：O643.3[理学—物理化学]