Selectivity and temperature dependence of phase and phase transition in diblock copolymer solution

CORC > 物理研究所 > 物理所公开发表论文 > 期刊论文

	Selectivity and temperature dependence of phase and phase transition in diblock copolymer solution
	Zhang, LY ; Wang, PY
刊名	EUROPEAN PHYSICAL JOURNAL E
	2011
卷号	34 期号:4
关键词	STAR POLYMER-SOLUTIONS TO-GYROID TRANSITION MEAN-FIELD-THEORY BLOCK-COPOLYMER VARYING SELECTIVITY SIMULATION METHODS BEHAVIOR SYSTEMS SOLVENTS BLENDS
ISSN号	1292-8941
通讯作者	Zhang, LY (reprint author), Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Key Lab Soft Matter Phys, Beijing 100190, Peoples R China.
中文摘要	In order to study the effects of solvent selectivity and temperature on phase behavior and transition of diblock copolymer solution, self-consistent field theory is modified to incorporate the short-range interaction and non-local effects. Inhomogeneous free-energy density is shown to be dependent on solvent selectivity, temperature and copolymer concentration. Enthalpic quantity and entropic contributions are crucial to phase diagrams of diblock copolymer solution. Three selective strengths of solvent-weak, moderate and strong-are chosen for comparison. For a weakly selective solvent, theoretical and experimental results illustrate the same variation tendency in the phase boundary of the order-disorder transition for a symmetric diblock of polystyrene and polyisoprene. Self-consistent field equations can be used to calculate the exact FCC-BCC structural phase transition temperatures in moderately and strongly selective solvents. Detailed comparison with the experimental phase diagrams including lamellar, cylindrical and spherical structures is presented.
收录类别	SCI
资助信息	National Natural Science Foundation of China [10834014]; National Basic Research Program of China (973 Program) [2009CB930704]
语种	英语
公开日期	2013-09-24
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/52389]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Zhang, LY,Wang, PY. Selectivity and temperature dependence of phase and phase transition in diblock copolymer solution[J]. EUROPEAN PHYSICAL JOURNAL E,2011,34(4).
APA	Zhang, LY,&Wang, PY.(2011).Selectivity and temperature dependence of phase and phase transition in diblock copolymer solution.EUROPEAN PHYSICAL JOURNAL E,34(4).
MLA	Zhang, LY,et al."Selectivity and temperature dependence of phase and phase transition in diblock copolymer solution".EUROPEAN PHYSICAL JOURNAL E 34.4(2011).