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首页> 外文期刊>Journal of Applied Polymer Science >Semicontinuous thermal bulk copolymerization of styrene and maleic anhydride: Experiments and reactor model
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Semicontinuous thermal bulk copolymerization of styrene and maleic anhydride: Experiments and reactor model

机译：苯乙烯和马来酸酐的半连续热本体共聚：实验和反应器模型

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Thermal bulk copolymerization of styrene (St) and maleic anhydride (MAH) has been carried out at 110-130 degrees C and up to around 55 wt % conversion in a stirred tank reactor with an anchor impeller to prepare the random copolymer of St-MAH (R-SMA). A series of experiments in semicontinuous monomer adding process were done to investigate the effects of operating condition on monomer conversion, copolymer composition, and its uniformity. It has been shown that a random copolymer with constant composition can be obtained by semicontinuous copolymerization. A reactor model was developed to simulate the copolymerization processes. The numerical method in which the gel effect on the copolymerization is incorporated has exhibited excellent agreement between the model calculation and the experimental data. However, when using the assumption that(1) k(22) = 0; (2) k(21)[M-1] k(12)[M-2]; and(3) (R-1/2h(t))(1/2) is a constant, an analytical solution to the model was found to be available also. (C) 1998 John Wiley & Sons, Inc. [References: 14]
机译：苯乙烯（St）和马来酸酐（MAH）的热本体共聚合已在110-130摄氏度下进行，并在带有锚定叶轮的搅拌釜反应器中达到了约55 wt％的转化率，以制备St-MAH的无规共聚物（R-SMA）。在半连续单体添加过程中进行了一系列实验，以研究操作条件对单体转化率，共聚物组成及其均匀性的影响。已经表明，可以通过半连续共聚获得具有恒定组成的无规共聚物。开发了反应器模型以模拟共聚过程。结合了凝胶对共聚作用的数值方法在模型计算和实验数据之间显示出极好的一致性。但是，当使用以下假设时：（1）k（22）= 0; （2）k（21）[M-1] k（12）[M-2];和（3）（R-1 / 2h（t））（1/2）是一个常数，发现该模型的解析解也是可用的。 （C）1998 John Wiley＆Sons，Inc. [参考：14]

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