POSS-NEODYMIUM COMPLEX{[(i-C_4H_9)_7(Si_7O_(12))Nd]_4NaCl}AS PRECURSOR FOR POLYMERIZATION OF ISOPRENE

POSS-NEODYMIUM COMPLEX{[(i-C_4H_9)_7(Si_7O_(12))Nd]_4NaCl}AS PRECURSOR FOR POLYMERIZATION OF ISOPRENE

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摘要 The tetrameric neodymium-silsesquioxane cage complex,{[(i-C_4H_9)_7(Si_7O_(12))Nd])4NaCl},was prepared and used as precursor for the polymerization of isoprene.When activated by AlEt_3 in the presence of TMSCl,this POSS-Nd complex (POSS=polyhedral oligomeric silsesquioxane) shows a moderate activity for the polymerization,and the effects of different ratios of Al/Nd,Cl/Nd and time on the polymerization were investigated.Moreover,The POSS-Nd complex may serve as models for the silica-supported rare earth cat... The tetrameric neodymium-silsesquioxane cage complex,{[(i-C_4H_9)_7(Si_7O_(12))Nd])4NaCl},was prepared and used as precursor for the polymerization of isoprene.When activated by AlEt_3 in the presence of TMSCl,this POSS-Nd complex (POSS=polyhedral oligomeric silsesquioxane) shows a moderate activity for the polymerization,and the effects of different ratios of Al/Nd,Cl/Nd and time on the polymerization were investigated.Moreover,The POSS-Nd complex may serve as models for the silica-supported rare earth cat...

作者孙维林

机构地区 Key Laboratory of Macromolecule Synthesis and Functionalization Department of Polymer Science and Engineering

出处《Chinese Journal of Polymer Science》 SCIE CAS CSCD 2009年第4期597-600,共4页 高分子科学（英文版）

基金 supported by the National Natural Science Foundation(No.20674071) the Special Funds for MajorState Basic Research Projects(No.2005CB623802).

关键词 Incompletely condensed silsesquioxanes Metal silsesquioxanes POLYISOPRENE Incompletely condensed silsesquioxanes Metal silsesquioxanes Polyisoprene

分类号 O631.3 [理学—高分子化学]

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Chinese Journal of Polymer Science

2009年第4期

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POSS-NEODYMIUM COMPLEX{[(i-C_4H_9)_7(Si_7O_(12))Nd]_4NaCl}AS PRECURSOR FOR POLYMERIZATION OF ISOPRENE

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