论文标题
低输入的UHMWPE熔体：分析模型和计算机模拟
Low-entangled UHMWPE melt: analytical model and computer simulations
论文作者
论文摘要
在这项工作中，我们开发了一个理论模型，以同时降水描述非常长的大分子的聚合。作为模型的参考系统，我们通过均匀催化和分子量高于$ 10^6 $单体的分子量来考虑UHMWPE聚合过程。我们得出了系统中纠缠长度的时间依赖性，并评估了发起人的聚合速率和比例如何影响这一依赖性。我们表明，启动器分数的减少导致完全聚合后熔体中平均纠缠长度的增加。结果由计算机模拟支持，原则上可以应用于结晶和无定形的广泛聚合材料。
In this work we developed a theoretical model to describe the polymerization of very long macromolecules with simultaneous precipitation. As a reference system for our model we consider UHMWPE polymerization process, via homogeneous catalysis and with molecular weight above $10^6$ monomers. We derived time dependency of the entanglement length in the system, and assessed how polymerization rate and fraction of initiators affects this dependency. We show that decrease of the fraction of initiators leads to increase of the average entanglement length in the melt after complete polymerization. The results are supported by computer simulations and in principle could be applied to the wide set of polymerized materials, both crystallized and amorphous.
