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首页> 外文期刊>The Journal of Chemical Physics >Expanded chain dimensions in polymer melts with nanoparticle fillers
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Expanded chain dimensions in polymer melts with nanoparticle fillers

机译:含纳米颗粒填料的聚合物熔体的链尺寸扩大

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摘要

We apply the self-consistent polymer reference interaction site model (SC/PRISM) to liquid state calculations of the chain dimensions in polymer melts with added nanoparticle fillers. The nanoparticles are assumed to be smaller than the polymer radius of gyration and are attracted to the polymer so that they are miscible. We find that the nanoparticles perturb the chain dimensions, causing an increase in the radius of gyration with increasing nanoparticle volume fractions, assuming reasonable interaction energies between the various components. The magnitude of the expansion is in qualitative agreement with recent neutron scattering results and suggests that the SC/PRISM approach is reasonable when dealing with these apparent nonlinear phenomena present in nanocomposites in the protein limit.
机译:我们将自洽的聚合物参考相互作用位点模型(SC / PRISM)用于添加了纳米颗粒填料的聚合物熔体中链尺寸的液相计算。假定纳米颗粒小于聚合物的回转半径,并且被吸引到聚合物上,因此它们是可混溶的。我们发现,假设各种组分之间具有合理的相互作用能,纳米粒子会扰乱链的尺寸,从而导致回转半径随纳米粒子体积分数的增加而增加。膨胀的大小与最近的中子散射结果在质量上吻合,并表明当处理蛋白质复合物中纳米复合物中存在的这些明显的非线性现象时,SC / PRISM方法是合理的。

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