Dependence of size and morphology on shear flow for PS-based amphiphilic block copolymer micelles in aqueous solution

doi:10.1007/s10118-017-1927-4

GIEC OpenIR > 中国科学院广州能源研究所

	Dependence of size and morphology on shear flow for PS-based amphiphilic block copolymer micelles in aqueous solution
	Wang, Zhi-da 1,2; Yan, Chang-feng1,2,3 ; Huang, Ying1,2,3 ; Yi, Li-qi 1,2,3
	2017-05-01
发表期刊	CHINESE JOURNAL OF POLYMER SCIENCE
卷号	35 期号:5 页码:641-648
摘要	This contribution focuses on the impact of shear flow on size and nanostructure of PS-based amphiphilic block copolymer (BC) micelles by varying the stirring rate and copolymer composition. The results show that the vesicles formed from diblock copolymer (di-BC) of PS-b-PAA remain with vesicular morphology, although the average size decreases, with the increase of stirring rate. However, the multi-compartment micelles (MCMs) formed from tri-block copolymer (tri-BC) of PS-b-P2VP-b-PEO are quite intricate, in which the copolymer first self-assembles into spheres, then to clusters, to large compound micelles (LCMs), and finally back to spheres, as stirring rate increases from 100 r/min to 2200 r/min. Formation mechanism studies manifest that vesicles form simultaneously as water is added to the di-BC solution, termed as directassembly, and remain with vesicular structure in the flowing process. While for the PS-b-P2VP-b-PEO copolymer, spherical micelles at initial stage can further assemble into clusters and LCMs, termed as second-assembly, due to the speeding-up-aggregation of the favorable stirring. As a result, an invert V-relationship between tri-BC micelle dimension and stirring rate is observed in contrast to the non-linear decreasing curve of di-BC vesicles. It is by investigating these various amphiphilic BCs that the understanding of shear dependence of size and morphology of micelles is improved from self-assembly to second-assembly process.
文章类型	Article
关键词	Self-assembly Shear Size Nanostructure Block Copolymer
WOS标题词	Science & Technology ; Physical Sciences
DOI	10.1007/s10118-017-1927-4
研究领域[WOS]	Polymer Science
关键词[WOS]	ABC TRIBLOCK COPOLYMER ; DIBLOCK COPOLYMERS ; CORONA COMPOSITION ; THIN-FILMS ; B-PAA ; NANOPARTICLES ; TRANSITION ; MIXTURES ; NANOSTRUCTURES ; PARTICLES
收录类别	SCI
语种	英语
项目资助者	Key Laboratory of Renewable Energy Foundation of Chinese Academy of Sciences(Y609JK1001) ; National Natural Science Foundation of China(51576201) ; Natural Science Foundation of Guangdong province(2015A030312007 ; Guangdong Science and Technology Project(2013B050800007) ; Guangzhou Science and Technology Project(2016201604030010) ; 2015A030313716)
WOS类目	Polymer Science
WOS记录号	WOS:000396124100006
引用统计
文献类型	期刊论文
条目标识符	http://ir.giec.ac.cn/handle/344007/14105
专题	中国科学院广州能源研究所
作者单位	1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China 2.Guangdong Key Lab New & Renewable Energy Res & De, Guangzhou 510640, Guangdong, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
第一作者单位	中国科学院广州能源研究所
推荐引用方式 GB/T 7714	Wang, Zhi-da,Yan, Chang-feng,Huang, Ying,et al. Dependence of size and morphology on shear flow for PS-based amphiphilic block copolymer micelles in aqueous solution[J]. CHINESE JOURNAL OF POLYMER SCIENCE,2017,35(5):641-648.
APA	Wang, Zhi-da,Yan, Chang-feng,Huang, Ying,&Yi, Li-qi.(2017).Dependence of size and morphology on shear flow for PS-based amphiphilic block copolymer micelles in aqueous solution.CHINESE JOURNAL OF POLYMER SCIENCE,35(5),641-648.
MLA	Wang, Zhi-da,et al."Dependence of size and morphology on shear flow for PS-based amphiphilic block copolymer micelles in aqueous solution".CHINESE JOURNAL OF POLYMER SCIENCE 35.5(2017):641-648.