Sen Sudeepto, Xie Yuping, Kumar Sanat K, Yang Hoichang, Bansal Amitabh, Ho Derek L, Hall Lisa, Hooper Justin B, Schweizer Kenneth S
Department of Chemical and Biological Engineering, Rensselaer Polytechnic Institute, Troy, New York 12180, USA.
Phys Rev Lett. 2007 Mar 23;98(12):128302. doi: 10.1103/PhysRevLett.98.128302. Epub 2007 Mar 22.
Small angle neutron scattering studies on polystyrene loaded with spherical silica nanoparticles under contrast-matched conditions unequivocally show that chain conformations follow unperturbed Gaussian statistics independent of chain molecular weight and filler composition. Liquid state theory calculations are consistent with this conclusion and also predict filler-induced modification of interchain polymer correlations which have a distinctive scattering signature that is in nearly quantitative agreement with our observations.
在对比度匹配条件下对负载球形二氧化硅纳米粒子的聚苯乙烯进行的小角中子散射研究明确表明，链构象遵循无扰高斯统计，与链分子量和填料组成无关。液态理论计算与这一结论一致，并且还预测了填料引起的链间聚合物相关性的改变，这种改变具有独特的散射特征，与我们的观察结果几乎在数量上一致。
