文献类型：期刊文献

英文题名：Hierarchical Microstructures Self-Assembled from Linear Multiblock Copolymers in Thin Films

作者：Lin, Jingyuan[1];Gong, Shuting[2];Zhang, Xu[2];Wang, Liquan[2]

机构：[1]Shanghai Ocean Univ, Sch Marine Sci, Shanghai 201306, Peoples R China;[2]E China Univ Sci & Technol, Sch Mat Sci & Engn, Minist Educ,Shanghai Key Lab Adv Polymer Mat, Key Lab Ultrafine Mat,State Key Lab Bioreactor En, Shanghai 200237, Peoples R China

年份：2015

卷号：24

期号：5

起止页码：468

外文期刊名：MACROMOLECULAR THEORY AND SIMULATIONS

收录：;EI(收录号：20152500946565);WOS:【SCI-EXPANDED(收录号:WOS:000362587900006)】；

基金：The work was supported by National Natural Science Foundation of China (21304035), Fundamental Research Funds for the Central Universities (222201314024), and Research Fund for the Doctoral Program of Higher Education of China (20120074120002).

语种：英文

外文关键词：confinement; hierarchical microstructure; linear multiblock copolymer; self-consistent field theory

摘要：Hierarchical lamellae self-assembled from linear multiblock copolymers in thin films are investigated by self-consistent field theory. The thin films are confined between two parallel substrates. The confinement strategy allows generating hierarchical microstructures with various numbers and different orientations of small-length-scale lamellae. Effects of film thickness and surface affinity on the structures are studied. It is found that not only the period of the large-and small-length-scale lamellae but also the orientation of small-length-scale lamellae relative to large-length-scale lamellae can be tuned by varying the film thickness. Moreover, the structures of the hierarchical lamellae can be tailored by changing the surface affinity. Through analyzing free energies of various lamellae, phase diagrams are mapped out. The present work could provide guidance for fabricating hierarchical microstructures in a controllable way.