Self-regulated structures in nanocomposites by directed nanoparticle assembly

被引:136
作者
Chung, H
Ohno, K
Fukuda, T
Composto, RJ [1 ]
机构
[1] Univ Penn, Lab Res Struct Matter, Philadelphia, PA 19104 USA
[2] Kyoto Univ, Inst Chem Res, Uji, Kyoto 6110011, Japan
关键词
D O I
10.1021/nl051079e
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Adding surface-modified silica nanoparticles (NPs) to polymer blend films, we demonstrate that directed interfacial segregation of NPs stabilize either three-dimensional (3D) interpenetrating or 2D discrete structures at high and low volume fractions of NPs, respectively. A simple interfacial energy argument provides a general guideline for predicting whether the NPs are directed to the interface between phases or into one phase. The final morphology and domain size can be predicted from the volume fraction of NPs, film thickness, and NP size.
引用
收藏
页码:1878 / 1882
页数:5
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