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Dependence of size and morphology on shear flow for PS-based amphiphilic block copolymer micelles in aqueous solution
Wang, Zhi-da1,2; Yan, Chang-feng1,2,3; Huang, Ying1,2,3; Yi, Li-qi1,2,3
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
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) ; 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)
DOI10.1007/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
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) ; 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
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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.
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