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Simultaneous polymer chain growth with the coexistence of bulk and surface initiators: an insight from computer simulation

Abstract

By Brownian dynamics simulations we study the simultaneous polymer chain growth process within the coexistence of bulk and surface initiators. We find when the surface initiator density is low enough, the practical experimental way to estimate the dispersity D of surface-initiated chains on the basis of the dispersity of bulk-initiated chains remains valid, as long as the conformations of grafted chains keep within mushroom regime. On the other hand, although the average chain length of surface and bulk polymers could be equivalent when certain conditions are met, their mass distributions are still different. We also find that increasing the fraction of surface initiators leads to an enlargement of both disparity of D and average length between surface and bulk chains, which is inconsistent with previous literature. This study helps to better understand the cooperative competition and suppressing effect of the bulk chains on the surface grown chains, as well as the cause of the dispersity of the surface grown chains as compared to their bulk counterparts with the coexistence of bulk and surface initiators.

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Publication details

The article was received on 19 Jun 2018, accepted on 09 Aug 2018 and first published on 10 Aug 2018


Article type: Paper
DOI: 10.1039/C8CP03878C
Citation: Phys. Chem. Chem. Phys., 2018, Accepted Manuscript
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    Simultaneous polymer chain growth with the coexistence of bulk and surface initiators: an insight from computer simulation

    J. Xu, Y. Xue, F. Cui, H. Liu and Z. Lu, Phys. Chem. Chem. Phys., 2018, Accepted Manuscript , DOI: 10.1039/C8CP03878C

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