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

	The structures of thin layer formed by microphase separation of grafted Y-shaped block copolymers in solutions
	Gao HM ; Liu H ; Lu ZY ; Sun ZY ; An LJ
刊名	journal of chemical physics
	2013
卷号	138 期号:22 页码:文献号: 224905
关键词	MIXED POLYMER BRUSHES DISSIPATIVE PARTICLE DYNAMICS SELECTIVE SOLVENTS NANO-OBJECTS NANOPARTICLES SIMULATIONS SURFACES BIOTECHNOLOGY INTERFACE BEHAVIOR
ISSN号	0021-9606
通讯作者	gao hm
中文摘要	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.
收录类别	SCI收录期刊论文
语种	英语
WOS记录号	WOS:000320675800048
公开日期	2014-04-15
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/49794]
专题	长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式 GB/T 7714	Gao HM,Liu H,Lu ZY,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):文献号: 224905.
APA	Gao HM,Liu H,Lu ZY,Sun ZY,&An LJ.(2013).The structures of thin layer formed by microphase separation of grafted Y-shaped block copolymers in solutions.journal of chemical physics,138(22),文献号: 224905.
MLA	Gao HM,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):文献号: 224905.