Re-assembly behaviors of polystyrene-b-poly(acrylic acid) micelles

doi:10.1016/j.polymer.2009.10.031

CORC > 化学研究所 > 中国科学院化学研究所

	Re-assembly behaviors of polystyrene-b-poly(acrylic acid) micelles
	Zhang, Yang 1; Xiao, Xing 1; Zhou, Jian-jun 1; Wang, Lei 1; Li, Zhi-bo 1; Li, Lin 1; Shi, Lin-qi 2; Chan, Chi-Ming 3
刊名	POLYMER
	2009-11-27
卷号	50 期号:25 页码:6166-6171
关键词	Block Copolymers Micelles Re-assembly
ISSN号	0032-3861
DOI	10.1016/j.polymer.2009.10.031
英文摘要	The re-assembly behaviors of spherical micelles of the polystyrene-b-poly(acrylic acid) (PS-b-PAA) diblock copolymer in different solvent mixtures were investigated using dynamic light scattering, transmission electron microscopy and atomic force microscopy. Depending on the nature of the solvent, PS-b-PAA micelles re-assembled from spheres to nanorings in toluene or to necklace-like aggregates in water induced by solvent evaporation. Systematic studies suggested that the re-assembly behaviors on a neutral surface are strongly correlated with the micellar surface components, the solvent polarity and the chain length of the micelle corona of the solvated blocks. We proposed that the formation of nanorings from PS-b-PAA micelles in toluene is mainly induced by the dewetting process of the solvent, while the necklace-like structure arises from the hydrogen bonding interactions among the partially dissociated PAA units. (C) 2009 Elsevier Ltd. All rights reserved.
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000272284100036
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/68019]
专题	中国科学院化学研究所
通讯作者	Li, Lin
作者单位	1.Chinese Acad Sci, Inst Chem, Beijing 100190, Peoples R China 2.Nankai Univ, Key Lab Funct Polymer Mat, Minist Educ, Inst Polymer Chem, Tianjin 300071, Peoples R China 3.Hong Kong Univ Sci & Technol, Dept Chem & Biomol Engn, Hong Kong, Hong Kong, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Yang,Xiao, Xing,Zhou, Jian-jun,et al. Re-assembly behaviors of polystyrene-b-poly(acrylic acid) micelles[J]. POLYMER,2009,50(25):6166-6171.
APA	Zhang, Yang.,Xiao, Xing.,Zhou, Jian-jun.,Wang, Lei.,Li, Zhi-bo.,...&Chan, Chi-Ming.(2009).Re-assembly behaviors of polystyrene-b-poly(acrylic acid) micelles.POLYMER,50(25),6166-6171.
MLA	Zhang, Yang,et al."Re-assembly behaviors of polystyrene-b-poly(acrylic acid) micelles".POLYMER 50.25(2009):6166-6171.