文献类型：期刊文献

英文题名：Monte Carlo simulations of the morphologies and conformations of triblock copolymer thin films

作者：Huang, Yongmin[1]; Liu, Honglai[1]; Hu, Ying[1]

机构：[1]E China Univ Sci & Technol, Dept Chem, Shanghai 200237, Peoples R China;[2]E China Univ Sci & Technol, Adv Mat Lab, Shanghai 200237, Peoples R China

年份：2006

卷号：15

期号：2

起止页码：117

外文期刊名：MACROMOLECULAR THEORY AND SIMULATIONS

收录：;EI(收录号：2006109743554);WOS:【SCI-EXPANDED(收录号:WOS:000235641600001)】；

语种：英文

外文关键词：conformation; Monte Carlo simulation; morphology; triblock copolymer thin film

摘要：The morphologies and conformations of triblock copolymer (ABA and ABC) thin films confined between two identical walls were investigated by Monte Carlo simulation using bond length fluctuation and cavity diffusion algorithm on cubic lattice. Effects of the wall-block interactions, copolymer chain composition and film thickness on morphologies, as well as on the fraction of chain "bridge" conformation f(bridge) are presented in detail. In ABA thin film, column, parallel, perforated and perpendicular lamellas were discriminated, furthermore, the transition of morphology and. the variation of f(bridge) of ABA film along with the increase of thickness were revealed. In ABC thin film, lamella especially perpendicular lamella morphologies are predominant in varying the wall-block interactions and the thickness. The results are consistent with some theoretical predictions such as DDFT and simulations reported in literature.