| RING-OPENING POLYMERIZATION OF TRIMETHYLENE CARBONATE CATALYZED BY NOVEL SINGLE COMPONENT RARE EARTH CALIXARENE COMPLEXES |
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| 作者姓名： | Wei-puZhu JunLing HongXu Zhi-quanShen |
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| 作者单位： | DepartmentofPolymerScienceandEngineering,ZhejiangUniversity,Hangzhou310027,China |
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| 基金项目： | 国家重点基础研究发展计划(973计划)
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国家自然科学基金 |
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| 摘 要： | In this paper, ring-opening polymerization of trimethylene carbonate (TMC) with rare earth (Nd, Y, La) p-tert-butylcalixn]arene (n=4, 6, and 8) complexes as catalysts has been studied. Poly(trimethylene carbonate) (PTMC) with Mv of 21,400 was produced by bulk polymerization under the conditions as follows: TMC]0/Nd] (molar ratio)=1000,80℃,8h. Mechanism study reveals that the polymerization proceeds via a coordination mechanism.
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| 关 键 词： | 开环聚合反应 三甲撑碳酸盐 杯芳烃 稀土金属 催化剂 |
| 收稿时间： | 2004-07-01 |
| 修稿时间： | 2004-10-08 |
Ring-Opening Polymerization of Trimethylene Carbonate Catalyzed by Novel Single Component Rare Earth Calixarene Complexes |
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| Wei-puZhu JunLing HongXu Zhi-quanShen.RING-OPENING POLYMERIZATION OF TRIMETHYLENE CARBONATE CATALYZED BY NOVEL SINGLE COMPONENT RARE EARTH CALIXARENE COMPLEXES[J].Chinese Journal of Polymer Science,2005,0(4):407-410. |
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| Authors: | Wei-pu Zhu Jun Ling Hong Xu Zhi-quan Shen |
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| Institution: | Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China |
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| Abstract: | In this paper, ring-opening polymerization of trimethylene carbonate (TMC) with rare earth (Nd, Y, La) p-tertbutylcalixn]arene (n = 4, 6, and 8) complexes as catalysts has been studied. Poly(trimethylene carbonate) (PTMC) with Mv of 21,400 was produced by bulk polymerization under the conditions as follows: TMC]0/Nd] (molar ratio) = 1000, 80℃,8 h. Mechanism study reveals that the polymerization proceeds via a coordination mechanism. |
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| Keywords: | Ring-opening polymerization Trimethylene carbonate Calixarene Rare earth complex |
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