Adsorption kinetics and stability of poly(ethylene oxide)-block-polystyrene micelles on polystyrene surface

doi:10.1016/j.polymer.2013.08.064

CORC > 化学研究所 > 中国科学院化学研究所

	Adsorption kinetics and stability of poly(ethylene oxide)-block-polystyrene micelles on polystyrene surface
	Peng, Bo 1,2; Chu, Xiao 1; Li, Yuyan 1; Li, Desheng 1; Chen, Yongming 1,2; Zhao, Jiang 1
刊名	POLYMER
	2013-10-04
卷号	54 期号:21 页码:5779-5789
关键词	Block Copolymers Desorption Surface Modification
ISSN号	0032-3861
DOI	10.1016/j.polymer.2013.08.064
英文摘要	Herein, adsorption kinetics of poly(ethylene oxide)-block-polystyrene (PEO-b-PS) micelles from aqueous solution on PS thin films was investigated by quartz crystal microbalance with dissipation monitoring (QCM-D) and atomic force microscopy (AFM). The stability of adsorbed micelles against water washing was enhanced by the strong physical interaction between the substrate-identical core blocks of micelles and the PS substrate. The adsorption kinetics was investigated and analyzed by a model considering both the effects of diffusion and micelles reorganization on the PS surface. The micelles adsorption process was well captured by this model which demonstrated that the micelles reorganized on the surface after adsorption. The fitting results exhibited that the micelles with longer core blocks had less tendency to reorganize on the surface while reorganization took more part in the adsorption process of the micelles with shorter core blocks. In the stability studies, micelles with shorter PS blocks could partially desorb from the PS substrate while micelles with longer PS blocks were totally hindered from desorption. Desorption process of micelles was evaluated by the hydrodynamics-induced rolling model. The results indicated that hydrodynamic force-induced partial slip of the micelles on the PS surface might be responsible for micelle desorption. Because of the hydrophilicity of adsorbed micelle layer, adsorption amount of BSA on the modified surface was greatly reduced comparing with that of the bare PS surface. (C) 2013 Elsevier Ltd. All rights reserved.
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000326204200041
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/54609]
专题	中国科学院化学研究所
通讯作者	Chen, Yongming
作者单位	1.Chinese Acad Sci, Inst Chem, Lab Polymer Phys & Chem, Beijing 100190, Peoples R China 2.Sun Yat Sen Univ, Sch Chem & Chem Engn, Key Lab Polymer Composite & Funct Mat, Minist Educ, Guangzhou 510275, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Peng, Bo,Chu, Xiao,Li, Yuyan,et al. Adsorption kinetics and stability of poly(ethylene oxide)-block-polystyrene micelles on polystyrene surface[J]. POLYMER,2013,54(21):5779-5789.
APA	Peng, Bo,Chu, Xiao,Li, Yuyan,Li, Desheng,Chen, Yongming,&Zhao, Jiang.(2013).Adsorption kinetics and stability of poly(ethylene oxide)-block-polystyrene micelles on polystyrene surface.POLYMER,54(21),5779-5789.
MLA	Peng, Bo,et al."Adsorption kinetics and stability of poly(ethylene oxide)-block-polystyrene micelles on polystyrene surface".POLYMER 54.21(2013):5779-5789.