期刊
JOURNAL OF CHEMICAL PHYSICS
卷 135, 期 1, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3606396
关键词
-
资金
- National Natural Science Foundation of China [50925308]
- Natural Science Foundation of Shanghai [10ZR1407800]
- Shanghai Municipality [11QA1401600, 2007CG38, 09XD1401400, 0952nm05100]
- Fundamental Research Funds for the Central Universities [20100074120001, WD0914031]
The self-assembly behavior of ABA coil-rod-coil triblock copolymers in a selective solvent was studied by a Brownian molecular dynamics simulation method. It was found that the rod midblock plays an important role in the self-assembly of the copolymers. With a decrease in the segregation strength, epsilon(RR), of rod pairs, the aggregate structure first varies from a smecticlike disk shape to a long twisted string micelle and then to small aggregates. The influence of the block length and the asymmetry of the triblock copolymer on the phase behavior were studied and the corresponding phase diagrams were mapped. It was revealed that the variation of these parameters has a profound effect on microstructure. The simulation results are consistent with experimental results. Compared to rod-coil diblock copolymers, the coil-rod-coil triblock copolymers has a larger entropy penalty associated with the interfacial grafting density of the aggregate, leading to a higher eRR value for structural transitions. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3606396]
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据