| 自由基聚合/扩散动力学模型与仿真 |
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| 引用本文： | 黄岐善,翁志学,黄志明,潘祖仁. 自由基聚合/扩散动力学模型与仿真[J]. 化工学报, 1999, 50(4): 456-462 |
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| 作者姓名： | 黄岐善 翁志学 黄志明 潘祖仁 |
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| 作者单位： | 浙江大学高分子科学与工程研究所!杭州310027,浙江大学高分子科学与工程研究所!杭州310027,浙江大学高分子科学与工程研究所!杭州310027,浙江大学高分子科学与工程研究所!杭州310027 |
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| 摘 要： | 基于自由体积和反应动力学理论,考虑了非稳态过程“笼蔽效应”对引发效率的影响,大分子自由基质心扩散、链段重排扩散、反应扩散对速率常数的影响,聚合物系体积变化对浓度的影响,松弛效应对于自由体积的影响.建立了自由基聚合动力学模型,并就苯乙烯本体聚合作了仿真验证.
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| 关 键 词： | 聚苯乙烯 笼蔽效应 质心扩散 链段重排扩散 |
KINETIC MODEL OF FREE RADICAL POLYMERIZATION INCLUDING DIFFUSION PHENOMENA |
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| Huang Qishan,Weng Zhixue,Huang Zhiming,Pan Zuren. KINETIC MODEL OF FREE RADICAL POLYMERIZATION INCLUDING DIFFUSION PHENOMENA[J]. Journal of Chemical Industry and Engineering(China), 1999, 50(4): 456-462 |
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| Authors: | Huang Qishan Weng Zhixue Huang Zhiming Pan Zuren |
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| Abstract: | Based on free volume and chemical reaction kinetic theories, a kinetic model of free radical polymerization including diffusion phenomena was established. Unsteady process-cage effect which could affect initiator efficiency, and mass centre translation diffusion, segment rearrangement diffusion and reaction diffusion of the radical were considered. The volume shrinkage and exceeding free volume were considered also. This model was applied to the simulation of styrene bulk polymerization and agreed well with the experimental result. |
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| Keywords: | polystyrene cage effect mass centre translation diffusion segment rearrangement diffu- |
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