Polymer-grafted nanoparticles prepared by surface-initiated polymerization: the characterization of polymer chain conformation, grafting density and polydispersity correlated to the grafting surface curvature.
Polymer-grafted nanoparticles prepared by surface-initiated polymerization: the characterization of polymer chain conformation, grafting density and polydispersity correlated to the grafting surface curvature.
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DOI：
10.1039/c3cp51960k
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发表时间：
2013-08
期刊：
影响因子：
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通讯作者：
Yao-Hong Xue;Youliang Zhu;Wei Quan;Fuheng Qu;Cheng Han;Jingtao Fan;Hong Liu
中科院分区：
文献类型：
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作者：
Yao-Hong Xue;Youliang Zhu;Wei Quan;Fuheng Qu;Cheng Han;Jingtao Fan;Hong Liu
The polymer-grafted nanoparticles prepared by the surface-initiated polymerization induced from the spherical surface is studied by coarse-grained molecular dynamics simulations combined with the stochastic reaction model. The coupling effect of the initiator density and the grafting surface curvature is mainly investigated. The confinement degree greatly changes with the grafting surface curvature, thus the initiation efficiency, the grafted chain polydispersity, as well as the chain mass distribution show great dependence on the surface curvature. The results reveal that preparing the nanoparticle with desired size (i.e., grafting surface curvature) is crucial for control of the grafted chain polydispersity and even its dispersion in the polymer matrix. Our studies shed light on better design of grafted nanoparticles and better control of dispersion in polymer matrices for improving the performance of polymer nanocomposite materials.
