文献类型：期刊文献

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

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

机构：[1] Laboratory for Advanced Material, Department of Chemistry, East China University of Science and Technology, Shanghai 200237, 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：EI(收录号：20074610919415)

语种：英文

外文关键词：Lamellar structures - Monte Carlo methods - Morphology

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 L0, parallel and vertical or distorted vertical lamellar structures appear in both flat and curved confinements. With increasing curvature, the compatibility of d and L0 becomes more perturbed so that perfectly parallel lamellae are formed with increasing difficulty. Owing to the smaller L0 of ABA as compared to AB, the transformation frequency of the incompatible region of d/L0(ABA) is more notable for ABA and the corresponding transformation period is larger than that of AB. ? 2007 WILEY-VCH Verlag GmbH & Co. KGaA.