| KINETIC STUDIES ON SUSPENSION POLYMERIZATION OF VINYL CHLORIDE |
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| 引用本文： | 谢土余,于在璋,蔡启振,潘祖仁. KINETIC STUDIES ON SUSPENSION POLYMERIZATION OF VINYL CHLORIDE[J]. 中国化学工程学报, 1986, 1(1): 36-44 |
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| 作者姓名： | 谢土余 于在璋 蔡启振 潘祖仁 |
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| 作者单位： | Department of Chemical Engineering Zhejiang University，Department of Chemicul Engineering，Zhejiang University，Department of Chemical Engineering，Zhejiang University，Department of Chemical Engineering，Zhejiang University |
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| 摘 要： | A kinetic model dC/dt=a βC~(1/3)for suspension polymerization of vinyl chloride was developed.Kineticstudies on such polymerization were carried out in a stainless steel tube reactor in the presence of high-,medium-,or low-activity initiators at different concentrations,and at temperatures ranging from 50 to 62~C.Twenty-six sets of kinetic data were obtained under different conditions.According to these experimentalresults,the acceleration behavior of vinyl chloride polymerization was discussed in detail.It is proposed thatthe auto-acceleration effect is due to the decrease of the termination rate constnat in the polymer-rich phaseand to the increase of initiator concentration owing to volume contraction during polymerization with aninitiator of lower activity.All plots of dC/dt against C are nonlinear during the two-phase stage,while dC/dtversus C~(2/2)curves show much better linearity up to 60—70% conversion.The proposed model can beused to explain satisfactorily why the reaction order of initiators is between 0.5 and 1.0.
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| 修稿时间： | |
KINETIC STUDIES ON SUSPENSION POLYMERIZATION OF VINYL CHLORIDE |
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| XIE Tuyu,YU Zaizhang,CAI Qizhen,PAN Zuren. KINETIC STUDIES ON SUSPENSION POLYMERIZATION OF VINYL CHLORIDE[J]. Chinese Journal of Chemical Engineering, 1986, 1(1): 36-44 |
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| Authors: | XIE Tuyu YU Zaizhang CAI Qizhen PAN Zuren |
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| Affiliation: | Department of Chemical Engineering, Zhejiang University |
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