文献类型：期刊文献

英文题名：Morphlogy transition of block copolymers under curved confinement

作者：Xiao, Xingqing; Huang, Yongmin; Liu, Honglai; Hu, Ying

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

年份：2007

卷号：16

期号：8

起止页码：732

外文期刊名：MACROMOLECULAR THEORY AND SIMULATIONS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000250978400002)】；

语种：英文

外文关键词：curved confinement; Monte Carlo simulation; morphology transition

摘要：The morphology transitions in AB diblock and ABA triblock copolymers confined between flat and curved surfaces were investigated by MC simulations. Upon variation of the extent of frustration between thickness d and bulk lamellae period L-0, parallel and vertical or distorted vertical lamellar structures appear in both flat and curved confinements. With increasing curvature, the compatibility of d and L-0 becomes more perturbed so that perfectly parallel lamellae are formed with increasing difficulty. Owing to the smaller L-0 of ABA as compared to AB, the transformation frequency of the incompatible region of d/L-0(ABA) is more notable for ABA and the corresponding transformation period is larger than that of AB.