| Synthesis, Characterization and Application of Benzyl-substituted Cyclopentadienyl lanthanide Complexes as Catalyst Precursors for the Syndiotactic Polymerization of Methyl Methacrylate |
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| 引用本文： | 钱延龙 BALAMuhammadD. 谢小敏 黄吉玲. Synthesis, Characterization and Application of Benzyl-substituted Cyclopentadienyl lanthanide Complexes as Catalyst Precursors for the Syndiotactic Polymerization of Methyl Methacrylate[J]. 中国化学, 2004, 22(6): 568-572. DOI: 10.1002/cjoc.20040220615 |
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| 作者姓名： | 钱延龙 BALAMuhammadD. 谢小敏 黄吉玲 |
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| 作者单位： | LaboratoryofOrganometallicChemistry,EastChinaUniversityofScienceandTechnology,Shanghai200237,China |
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| 基金项目： | Project supported by the Major State Basic Research Development Program (No. G1999064801)，and the National Natural Science Foundation of China (Nos. 20072004 and 29871010). |
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| 摘 要： | 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 AI(Et)3 as co-catalyst, the title complexes are efficient catalysts for the syndiotactic polymerization of methyl methacrylate. For the complex (C6HsCH2C5H4)2YCl, under the optimum polymerization conditions(60℃,n(MMA):n(catalyst):n(co-catalyst)=1000:1:10),a predominantly syndiotactic (rr=66%) polymerof high molecular weight (Mη=105000) was obtained.
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| 关 键 词： | 合成 苄基环戊二烯 镧化合物 催化剂 间规聚合 甲基丙烯酸酯 间同归正度 聚合作用 |
Synthesis, Characterization and Application of Benzyl-substituted Cyclopentadienyl lanthanide Complexes as Catalyst Precursors for the Syndiotactic Polymerization of Methyl Methacrylate |
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| QIAN,Yan-Long BALA,Muhammad D. XIE,Xiao-Min HUANG,Ji-LingLaboratory of Organometallic Chemistry,East China University of Science and Technology,Shanghai ,China. Synthesis, Characterization and Application of Benzyl-substituted Cyclopentadienyl lanthanide Complexes as Catalyst Precursors for the Syndiotactic Polymerization of Methyl Methacrylate[J]. Chinese Journal of Chemistry, 2004, 22(6): 568-572. DOI: 10.1002/cjoc.20040220615 |
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| Authors: | QIAN Yan-Long BALA Muhammad D. XIE Xiao-Min HUANG Ji-LingLaboratory of Organometallic Chemistry East China University of Science Technology Shanghai China |
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| Affiliation: | QIAN,Yan-Long BALA,Muhammad D. XIE,Xiao-Min HUANG,Ji-Ling*Laboratory of Organometallic Chemistry,East China University of Science and Technology,Shanghai 200237,China |
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| Abstract: | 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 AI(Et)3 as co‐catalyst. the title complexes are efficient catalysts for the syndiotactic polymerization of methyl methacrylate. For the complex (C6H5CH2C5H4)2YCl, under the optimum polymerization conditions (60 °C, n(MMA) : n(catalyst) : n(co‐catalyst)=1000 : 1 : 10), a predominantly syndiotactic (rr=66%) polymer of high molecular weight (Mn= 105000) was obtained. |
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| Keywords: | benzyl-cyclopentadiene organolanthanide complex methyl methacrylate syndiotacticity polym-erization |
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