کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5179249 | 1502509 | 2016 | 11 صفحه PDF | دانلود رایگان |
• Stepwise polymerization kinetics was studied by a new molecular simulation algorithm.
• Scaling of polymerization kinetics in diffusion-controlled regime was proposed.
• Transition from reaction-to diffusion-controlled kinetics was provided.
The kinetics of stepwise polymerization in the diffusion-controlled regime was investigated using dynamic Monte Carlo simulation and scaling analysis. In analogy to Flory’s expression, a concise expression of reaction kinetics in diffusion controlled regime was proposed, where the number average degree of polymerization was related to the initial concentration and reaction time through a power law dependence. In addition, the transition of kinetics from the classical reaction-controlled to diffusion-controlled regime was predicted and examined via simulation. The results provided a good description of kinetics for the late stage of stepwise polymerizations, and demonstrated good agreements with the various experiments.
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Journal: Polymer - Volume 97, 5 August 2016, Pages 335–345