文献类型：期刊文献

中文题名：Synthesis, Characterization and Application of Benzyl-substituted Cyclopentadienyl lanthanide Complexes as Catalyst Precursors for the Syndiotactic Polymerization of Methyl Methacrylate

英文题名：Synthesis, Characterization and Application of Benzyl-substituted Cyclopentadienyl lanthanide Complexes as Catalyst Precursors for the Syndiotactic Polymerization of Methyl Methacrylate

作者：钱延龙[1];BALA;Muhammad D.;谢小敏[1];黄吉玲[1]

机构：[1]Laboratory of Organometallic Chemistry, East China University of Science and Technology, Shanghai 200237, China

年份：2004

卷号：22

期号：6

起止页码：568

中文期刊名：Chinese Journal of Chemistry

外文期刊名：中国化学（英文版）

收录：CSTPCD;;Scopus;CSCD:【CSCD2011_2012】；

基金：Project supported by the Major State Basic Research Development Program (No. G1999064801); and the National Natural Science Foundation of China (Nos. 20072004 and 29871010).

语种：中文

中文关键词：benzyl-cyclopentadiene;organolanthanide complex;methyl methacrylate;syndiotacticity;polym-erization

外文关键词：benzyl-cyclopentadiene, organolanthanide complex, methyl methacrylate, syndiotacticity, polym-erization

摘要：Yan-LongBALA, Muhammad D. XIE, Xiao-Min(HUANG, Ji-Ling*Laboratory of Organometallic Chemistry, East China University of Science and Technology, Shanghai 200237, China Benzyl-substituted cyclopentadienyl lanthanide complexes were synthesized and characterized by elemental analysis, MS and IR spectroscopy. The analytical data point out the formation of monomeric, unsolvated complexes. In conjunction with Al(Et)3 as co-catalyst, the title complexes are efficient catalysts for the syndiotactic polymeriza-tion of methyl methacrylate. For the complex (C6H5CH2C5H4)2YCl, under the optimum polymerization conditions (60 ℃, n(MMA)∶n(catalyst)∶n(co-catalyst)=1000∶1∶10), a predominantly syndiotactic (rr=66%) polymer of high molecular weight (Mh=105000) was obtained.
Yan-LongBALA, Muhammad D. XIE, Xiao-Min(HUANG, Ji-Ling*Laboratory of Organometallic Chemistry, East China University of Science and Technology, Shanghai 200237, China Benzyl-substituted cyclopentadienyl lanthanide complexes were synthesized and characterized by elemental analysis, MS and IR spectroscopy. The analytical data point out the formation of monomeric, unsolvated complexes. In conjunction with Al(Et)3 as co-catalyst, the title complexes are efficient catalysts for the syndiotactic polymeriza-tion of methyl methacrylate. For the complex (C6H5CH2C5H4)2YCl, under the optimum polymerization conditions (60 ℃, n(MMA)∶n(catalyst)∶n(co-catalyst)=1000∶1∶10), a predominantly syndiotactic (rr=66%) polymer of high molecular weight (Mh=105000) was obtained.