| STUDY ON HIGHLY ACTIVE ZIEGLERNATTA CATALYSTS FOR POLYMERIZATION OF OLEFINS |
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| 作者姓名： | 王立 封麟先 徐君庭 杨士林 |
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| 作者单位： | Department of Polymer Science and Engineering，Zhejiang University，Hangzhou 310027，Department of Polymer Science and Engineering，Zhejiang University，Hangzhou 310027，Department of Polymer Science and Engineering，Zhejiang University，Hangzhou 310027，Department of Polymer Science and Engineering，Zhejiang University，Hangzhou 310027 |
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| 基金项目： | This work was supported by the National Natural Science Foundation of China |
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| 摘 要： | In this paper, highly active Ziegler-Natta catalysts of MgCl_2 supported TiCl_4 for synthesis ofpolyolefins, using di-n-butyl phthalate (DNBP) as internal donor and diphenyl dimethoxyl silane(DPDMS) as external donor, have been prepared. The conditions controlling the treatment ofsupport were studied. The interactions of various components present in the catalysts and theirinfluences on catalytic performance were investigated. It is found that by using DNBP and DPDMSas internal and external donors together the polymer products with higher isotactic index can beobtained. Plausible structure model and mechanism were proposed.
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| 收稿时间： | 1993-10-18 |
STUDY ON HIGHLY ACTIVE ZIEGLERNATTA CATALYSTS FOR POLYMERIZATION OF OLEFINS* |
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| WANG Li,FENG Linxian,XU Junting,YANG Shilin.STUDY ON HIGHLY ACTIVE ZIEGLERNATTA CATALYSTS FOR POLYMERIZATION OF OLEFINS[J].Chinese Journal of Polymer Science,1995,0(1):41-50. |
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| Authors: | WANG Li FENG Linxian XU Junting YANG Shilin |
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| Institution: | Department of Polymer Science and Engineering; Zhejiang University; Hangzhou |
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| Abstract: | In this paper, highly active Ziegler-Natta catalysts of MgCl_2 supported TiCl_4 for synthesis ofpolyolefins, using di-n-butyl phthalate (DNBP) as internal donor and diphenyl dimethoxyl silane(DPDMS) as external donor, have been prepared. The conditions controlling the treatment ofsupport were studied. The interactions of various components present in the catalysts and theirinfluences on catalytic performance were investigated. It is found that by using DNBP and DPDMSas internal and external donors together the polymer products with higher isotactic index can beobtained. Plausible structure model and mechanism were proposed. |
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| Keywords: | Ziegler-Natta catalyst Polymerization of olefins ESR Internal and external donors |
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