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Phase separation and crystallization of binary nanoparticles induced by polymer brushes
ZHANG Dong,ZHANG Linxi * #
Department of Physics, Zhejiang University, HangZhou 310027
*Correspondence author
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Funding: 教育部博士点基金（No.No. 20090101110002）
Opened online:17 December 2012
Accepted by: none
Citation: ZHANG Dong,ZHANG Linxi.Phase separation and crystallization of binary nanoparticles induced by polymer brushes[OL]. [17 December 2012] http://en.paper.edu.cn/en_releasepaper/content/4500547
 
 
The aggregation behaviors and phase separation of binary nanoparticles in semiflexible polymer brushes are explored by using molecular dynamics simulations. The conformations of the binary nanoparticles/brushes mixtures are very sensitive to the size ratio of nanoparticles and the attractive interactions between nanoparticles and polymer brushes. The phase separation of the binary nanoparticles is observed at a relatively strong attractive interaction under the effect of inter-nanoparticle depletion attractions provided by polymer brushes. Furthermore, the crystallization of small nanoparticles occurs at a strong interaction and a hexagonal close-packed-like (hcp-like) ordered structure is formed. The present results may promise a new approach for controlling the self-assembling behavior of nanoparticles and constructing a better macroscopic performance of the material.
Keywords:polymer brush; binary nanoparticle; phase separation; crystallization
 
 
 

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