文献类型：期刊文献

英文题名：Morphologies of diblock copolymer/homopolymer blend 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：4

起止页码：321

外文期刊名：MACROMOLECULAR THEORY AND SIMULATIONS

收录：;EI(收录号：2006239917617);WOS:【SCI-EXPANDED(收录号:WOS:000237817800004)】；

语种：英文

外文关键词：Monte Carlo simulation; morphology; polymer blend film

摘要：Using bond length fluctuation and cavity diffusion algorithm, the morphologies of diblock copolmer/homopolymer blend films, AB/C and AB/A, confined between two hard walls are studied via Monte Carlo (MC) simulation on a cubic lattice. For the AB/C film, the C homopolymer is supposed to be more compatible with the A block than with the B block, while A and B are mutually incompatible. Effects of the composition of the diblock copolymer/homopolymer mixture, the film thickness and the selective wall field on morphologies are studied in detail. Furthermore, the simulated results are compared with that of corresponding ABA and ABC triblock copolymer thin films. Comparisons with experiments and SCF theory also show good agreement. The results indicate that both the AB/C and AB/A can be used to prepare porous AB diblock copolymer membranes, thesize of the pore channel can be controlled by the volume fraction of homopolymer C or homopolymer A. [GRAPHICS] Morphology of A(6)B(14)/C-10 polymer blend film.