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首页> 外文期刊>Macromolecular theory and simulations >Modeling of Superacid Catalyzed Step‐Growth Polymerization of Isatin and Biphenyl or Terphenyl Monomers
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Modeling of Superacid Catalyzed Step‐Growth Polymerization of Isatin and Biphenyl or Terphenyl Monomers

机译：甲苷和联苯或三苯基或三苯基单体的超酸催化钙生长聚合的建模

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摘要

> A mathematical model for the kinetics and molecular weight development of superacid catalyzed step‐growth polymerization of isatin and biphenyl or terphenyl monomers is developed. By considering different reactivities among the several types of polymer molecules present in an otherwise conventional A 2 + B 2 step‐growth polymerization system, ultrahigh molecular weights are predicted by the model for superacid catalyzed polyhydroxyalkylation reactions, a result that remains unclear in the literature since it seems to be in disagreement with the classical A 2 + B 2 theory. Three polymerization systems are addressed in this study: (a) polymerization of isatin and biphenyl, (b) modified isatin and biphenyl, and (c) modified isatin and terphenyl. Overall good agreement between calculated and experimental results of polymerization rate, and evolution of number‐ and weight‐average molecular weights ( M n and M w , respectively) is observed. However, some discrepancies for molar mass dispersity ( D ) are observed.
机译： > 开发了用于Isatin和联苯或三苯基或苯基单体的超酸催化阶梯生长聚合的动力学和分子量发展的数学模型。通过考虑常规A中存在的几种类型的聚合物分子之间的不同反应性 2 + B. 2 步进 - 生长聚合体系，超高分子量通过模型进行超高酸催化的多羟基烷基化反应，其在文献中仍不清楚，因为它似乎与古典a分歧 2 + B. 2 理论。本研究解决了三种聚合体系：（a）Isatin和Biphenyl的聚合，（b）改性的Isatin和Biphenyl，和（C）改性的等素和三苯基。计算和聚合速率的实验结果之间的总体良好一致性，以及数量和重均分子量的演化（ m n 和 m w 分别观察到）。但是，摩尔质量分散性的一些差异（ d ）被观察到。

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