| Kinetic
model of gas phase polymerization of 1,3-butadiene catalyzed by supported rare earth
coordination system |
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| 作者姓名： | 沈之荃 李维实 张一烽 |
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| 作者单位： | Department of Polymer Science and Engineering，Zhejiang University，Hangzhou 310027，China，Department of Polymer Science and Engineering，Zhejiang University，Hangzhou 310027，China，Department of Polymer Science and Engineering，Zhejiang University，Hangzhou 310027，China |
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| 基金项目： | the Ministry of Science and Technology of China，the National Natural Science Foundation of China，Ministry of Education of China，Commission of Science and Technology of Zhejiang Province |
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| 摘 要： | Gas phase polymerization of 1,3-butadiene (Bd) catalyzed by supported rare earth coordination system is studied and a new kinetic model is proposed. Four elementary reactions or processes: the process of exposure and activation of potential active catalytic center, propagation, deactivation and chain transfer reaction to alkyl aluminum, are considered in this model. Some important parameters, such as monomer-consuming rate, are well expressed as the functions of macroscopic polymerization conditions such as pressure, temperature, and duration. The model can simulate the whole polymerization procedure satisfactorily.
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| 收稿时间： | 23 May 2006 |
Kinetic model of gas phase polymerization of 1,3-butadiene catalyzed by supported rare earth coordination system |
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| SHEN Zhiquan,LI Weishi,ZHANG Yifeng.Kinetic
model of gas phase polymerization of 1,3-butadiene catalyzed by supported rare earth
coordination system[J].Science in China(Chemistry),2000,43(5):477-484. |
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| Authors: | SHEN Zhiquan LI Weishi ZHANG Yifeng |
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| Institution: | Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China |
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| Abstract: | Gas phase polymerization of 1,3-butadiene (Bd) catalyzed by supported rare earth coordination system is studied and a new kinetic model is proposed. Four elementary reactions or processes: the process of exposure and activation of potential active catalytic center, propagation, deactivation and chain transfer reaction to alkyl aluminum, are considered in this model. Some important parameters, such as monomer-consuming rate, are well expressed as the functions of macroscopic polymerization conditions such as pressure, temperature, and duration. The model can simulate the whole polymerization procedure satisfactorily. |
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| Keywords: | rare earth catalyst 1 3-butadiene gas phase polymerization kinetic modeling |
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