文献类型：期刊文献

英文题名：Ordered Nanostructures Self-Assembled from Block Copolymer Tethered Nanoparticles

作者：Zhu, Xiaomeng[1];Wang, Liquan[1];Lin, Jiaping[1];Zhang, Liangshun[1]

机构：[1]E China Univ Sci & Technol, Shanghai Key Lab Adv Polymer Mat, Sch Mat Sci & Engn, Key Lab Ultrafine Mat,Minist Educ, Shanghai 200237, Peoples R China

年份：2010

卷号：4

期号：9

起止页码：4979

外文期刊名：ACS NANO

收录：;EI(收录号：20104013274113);WOS:【SCI-EXPANDED(收录号:WOS:000282121000004)】；

基金：This work was supported by National Natural Science Foundation of China (50925308). Support from Projects of Shanghai Municipality (09XD1401400, 0952 nm05100, 08DZ2230500, and B502) is also appreciated.

语种：英文

外文关键词：self-assembly; hierarchical structures; nanoparticles; diblock copolymer; self-consistent field theory

摘要：Combining the self-consistent field theory (SCFT) and the density functional theory (DFT), we investigated the self-assembly behavior of AB diblock copolymer tethered single spherical particle P (ABP molecules). Two cases were studied: one is where the particles are chemically neutral to both A and B blocks, and the other is where the particles are unfavorable to neither of the two blocks. For neutral particles, the ABP molecules self-assemble to typical equilibrium microstructures, such as lamellae and cylinders. The P particles are localized in B block domains, and the size of particles can influence the phase behavior. For unfavorable particles, the ABP molecules microphase separate to form distinct ordered structures. Hierarchical structures, such as cylinders with cylinders at the interfaces and lamellae with cylinders at the interfaces, were observed. These resulting hierarchical structures are mainly determined by two parameters: A block fraction f(A) and particle size R. On the basis of the calculation results, phase diagrams were constructed.