A model is proposed for particle growth in the stabilizer‐free dispersion copolymerization of styrene (ST) and maleic anhydride (MAH). The model is based on the assumptions that 1) polymerization occurs in both the continuous phase and the polymer particles, 2) the nucleation step is fast, and the number of polymer particles is fixed during the process, 3) the particle population is monodisperse, 4) the propagation step between ST and MAH follows the terminal model, and 5) the termination step is diffusion‐controlled, causing an autoacceleration effect in the process. The model predicts the global conversion, copolymer composition and the polymer particle diameter during time. The validation data are obtained experimentally by stabilizer‐free dispersion copolymerization and the model predictions are in good agreement with the experimental data.

中文翻译：

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苯乙烯和顺丁烯二酸酐的无稳定剂分散共聚的数学模型：颗粒生长

提出了一种在无稳定剂的苯乙烯（ST）和马来酸酐（MAH）分散共聚中颗粒生长的模型。该模型基于以下假设：1）在连续相和聚合物颗粒中均发生聚合，2）成核步骤快速，并且在此过程中聚合物颗粒的数量是固定的，3）颗粒种群是单分散的， 4）ST和MAH之间的传播步骤遵循终端模型，并且5）终止步骤受扩散控制，从而在该过程中产生自动加速效果。该模型预测一段时间内的总转化率，共聚物组成和聚合物粒径。验证数据是通过无稳定剂的分散共聚实验获得的，模型预测与实验数据吻合良好。