A novel modeling framework is presented for the peroxide-initiated radical polymerization of styrene, in the presence of ground-tire rubber particles. The model takes into account the previously observed effects of the rubber particles, and their highly-reactive additives, on the course of the polymerization. To this end, a generalized kinetic mechanism is proposed, on the basis of a typical styrene homopolymerization scheme, including also a series of additional chemical reactions that are implemented to describe the deviation of the system from the respective homopolymerization case when ground-tire rubber is present in the mixture. This deviation is mainly manifested through an accelerated peroxide decomposition and significant retardation and inhibition of the reaction and displays a non-linear dependence on the contents of rubber particles and initiator. The proposed model succeeds in predicting this behavior under different reaction conditions, while its generality makes it suitable for implementation in other similar grafting polymerization systems.

提出了一种新的建模框架，用于在磨碎的轮胎橡胶颗粒存在下过氧化物引发的苯乙烯自由基聚合。该模型考虑了之前观察到的橡胶颗粒及其高反应性添加剂对聚合过程的影响。为此，在典型的苯乙烯均聚方案的基础上，提出了一种广义动力学机制，还包括一系列额外的化学反应，这些反应用于描述当磨碎的轮胎橡胶为存在于混合物中。这种偏差主要通过加速过氧化物分解和显着延迟和抑制反应表现出来，并表现出对橡胶颗粒和引发剂含量的非线性依赖性。所提出的模型成功地预测了不同反应条件下的这种行为，而其通用性使其适合在其他类似的接枝聚合系统中实施。