Effects of Solvent Evaporation Rate and Poly(acrylic acid) on Formation of Poly(ethylene oxide)-block-polystyrene Micelles from Emulsion

	Effects of Solvent Evaporation Rate and Poly(acrylic acid) on Formation of Poly(ethylene oxide)-block-polystyrene Micelles from Emulsion
	Su, Mei ; Su, Zhaohui
刊名	macromolecules
	2014
卷号	47 期号:4 页码:1428-1432
关键词	BLOCK-COPOLYMER MICELLES POLYSTYRENE-BLOCK-POLY(ETHYLENE OXIDE) MICELLES MULTIPLE MORPHOLOGIES DRUG-DELIVERY INTERFACIAL INSTABILITIES BIOLOGICAL SIGNIFICANCE DIBLOCK COPOLYMERS COMPLEXATION WATER FLUORESCENCE
通讯作者	su,zh
英文摘要	in this work, a solution of poly(ethylene oxide)-block-polystyrene (peo-b-ps) block copolymer in an organic solvent was dispersed in water to form an emulsion in the presence of poly(acrylic acid) (paa), which upon solvent evaporation produced micelles, and the "emulsion and solvent evaporation" process was studied. it was found that paa interacted with the peo corona of the micelles to reduce the curvature, transforming the aggregates from cylinders into vesicles when 1,2-dichloroethane was the solvent. however, when a more volatile solvent, dichloromethane, was used instead, cylindrical micelles were obtained. even from 1,2-dichloroethane, cylinders were the predominant species when the initial solution concentration was higher (i.e., shorter evaporation process) or when paa with a much higher molecular weight was used. on the basis of these observations, the interplay between the solvent evaporation rate and the mass transport and chain reorganization at the inteface is discussed. in addition, some intermediate structures were observed, which provided insight into the assembly process.
收录类别	SCI
语种	英语
WOS记录号	WOS:000332059300022
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/52085]
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	Su, Mei,Su, Zhaohui. Effects of Solvent Evaporation Rate and Poly(acrylic acid) on Formation of Poly(ethylene oxide)-block-polystyrene Micelles from Emulsion[J]. macromolecules,2014,47(4):1428-1432.
APA	Su, Mei,&Su, Zhaohui.(2014).Effects of Solvent Evaporation Rate and Poly(acrylic acid) on Formation of Poly(ethylene oxide)-block-polystyrene Micelles from Emulsion.macromolecules,47(4),1428-1432.
MLA	Su, Mei,et al."Effects of Solvent Evaporation Rate and Poly(acrylic acid) on Formation of Poly(ethylene oxide)-block-polystyrene Micelles from Emulsion".macromolecules 47.4(2014):1428-1432.