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Monte Carlo Model for Arborescent Polyisobutylene Production in the Batch Reactor

机译:间歇反应器中树状聚异丁烯生产的蒙特卡洛模型

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摘要

A Monte Carlo (MC) model is developed to predict molecular weight distribution and branching during the production of arborescent polyisobutylene. The model describes selfcondensing vinyl copolymerization (SCVCP) of isobutylene and inimer via living carbocationic polymerization. Six different propagation rate constants are required to account for two types of vinyl groups and three types of carbocations in the system. MC model predictions are better than predictions from a previous PREDICI material balance model because fewer simplifying assumptions are required. The MC model predictions reveal that reactions that were previously neglected have an important influence on polymer properties.
机译:建立了蒙特卡洛(MC)模型以预测在树状聚异丁烯生产过程中的分子量分布和分支。该模型描述了通过活性碳阳离子聚合进行的异丁烯和亚胺的自缩合乙烯基共聚(SCVCP)。需要六种不同的传播速率常数来说明系统中的两种乙烯基和三种碳正离子。 MC模型的预测比以前的PREDICI物料平衡模型的预测要好,因为所需的简化假设更少。 MC模型的预测表明,以前被忽略的反应对聚合物性能有重要影响。

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