Study on the scaling of polymer size during stepwise polymerization

摘要

The scaling relation of mean square end-to-end distance to number average molecular weight during stepwise polymerization was studied by Monte Carlo simulation. The scaling of polymer was very close to ideal value 2v=1.2 and so did the probability distribution of polymer size. In our studied situations, the polydispersity induced by polymerization had negligible effect on the scaling. This observation demonstrate that the screening of volume exclusion is delayed due to large amount of short chains.