The structures of thin layer formed by microphase separation of grafted Y-shaped block copolymers in solutions

doi:10.1063/1.4809988

CORC > 化学研究所 > 中国科学院化学研究所

	The structures of thin layer formed by microphase separation of grafted Y-shaped block copolymers in solutions
	Gao, Hui-Min 1; Liu, Hong 2; Lu, Zhong-Yuan 2; Sun, Zhao-Yan 1; An, Li-Jia 1
刊名	JOURNAL OF CHEMICAL PHYSICS
	2013-06-14
卷号	138 期号:22
ISSN号	0021-9606
DOI	10.1063/1.4809988
英文摘要	We study the structure formation of grafted Y-shaped block copolymers in solutions via dissipative particle dynamics simulations. We systematically examine how the solvent quality, the grafting density, and the incompatibility between polymer blocks affect the morphology of the grafted layer. The layer thickness and the lateral domain size and inhomogeneity of the layer structures are analyzed. A power law, h(layer) similar to sigma(n), is found between the layer thickness (h(layer)) and the grafting density (sigma), which shows three regimes, i.e., the brushes regime, the crossover regime, and the mushrooms regime. In the brushes regime, we also find that the exponent n is dependent on the grafting densities and solvent conditions, regardless of the incompatibility between the polymer blocks. In the mushrooms and the crossover regime, a variety of surface structures can be observed, such as mixed micelles, internally segregated micelles, hamburger micelles, segmented wormlike micelles, and dumbbell micelles. The stripe-like structure formed in the brushes regime is investigated in detail. The simulation results are in good agreement with theoretical predictions and experimental observations, and can be helpful for the surface structure design of functional materials. (C) 2013 AIP Publishing LLC.
语种	英语
出版者	AMER INST PHYSICS
WOS记录号	WOS:000320675800048
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/46731]
专题	中国科学院化学研究所
通讯作者	Gao, Hui-Min
作者单位	1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 2.Jilin Univ, Inst Theoret Chem, State Key Lab Theoret & Computat Chem, Changchun 130023, Peoples R China
推荐引用方式 GB/T 7714	Gao, Hui-Min,Liu, Hong,Lu, Zhong-Yuan,et al. The structures of thin layer formed by microphase separation of grafted Y-shaped block copolymers in solutions[J]. JOURNAL OF CHEMICAL PHYSICS,2013,138(22).
APA	Gao, Hui-Min,Liu, Hong,Lu, Zhong-Yuan,Sun, Zhao-Yan,&An, Li-Jia.(2013).The structures of thin layer formed by microphase separation of grafted Y-shaped block copolymers in solutions.JOURNAL OF CHEMICAL PHYSICS,138(22).
MLA	Gao, Hui-Min,et al."The structures of thin layer formed by microphase separation of grafted Y-shaped block copolymers in solutions".JOURNAL OF CHEMICAL PHYSICS 138.22(2013).