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Shear-Assisted Fabrication of Block Copolymer Agglomerates with Various Morphologies in Viscous Medium
Yang, Zongpeng1; Chen, Xiaoli2; Xu, Zhou1; Xiao, Meina1; Hong, Liangzhi1; Ngai, To3
2017-03-21
发表期刊LANGMUIR
卷号33期号:11页码:2829-2836
摘要In this work, we have investigated the effect of laminar flow shearing on the formation of block copolymer agglomerates in viscous medium. Under a laminar flow shearing, the block copolymer solution droplets were spontaneously emulsified and were then elongated into protofibers, which in turn transformed into particles with various morphologies. Besides micro-/nanorods, which were previously reported for homopolymers, sphere and sheetlike structures were unexpectedly fabricated from block copolymers depending on the solvent quality, solvent exchange rates, and the entanglement of the polymer chains. In partiailar, the sheet structure, fabricated from poly(ethylene glycol)-b-polystyrene (PEG-b-PS), can be fixed by UV irradiation when photo-crosslinkable azide groups were introduced onto the polystyrene block. Surprisingly, we found that the fixed sheetlike structures show demulsification capability in tens of seconds, which may have great potential application in the separation of oil from emulsions.
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
资助者National Natural Science Foundation of China(21374031 ; Fundamental Research Funds for the Central Universities ; 21574110) ; National Natural Science Foundation of China(21374031 ; Fundamental Research Funds for the Central Universities ; 21574110)
DOI10.1021/acsiangmuir.7b00119
研究领域[WOS]Chemistry ; Materials Science
关键词[WOS]DRUG NANOPARTICLE FORMATION ; IN-WATER EMULSIONS ; ONE-STEP FORMATION ; PEG-B-PCL ; ENZYMATIC BIODEGRADATION ; BIOMEDICAL APPLICATIONS ; EFFICIENT SEPARATION ; TRIBLOCK COPOLYMERS ; MULTIPLE EMULSIONS ; DIBLOCK COPOLYMER
收录类别SCI
语种英语
资助者National Natural Science Foundation of China(21374031 ; Fundamental Research Funds for the Central Universities ; 21574110) ; National Natural Science Foundation of China(21374031 ; Fundamental Research Funds for the Central Universities ; 21574110)
WOS类目Chemistry, Multidisciplinary ; Chemistry, Physical ; Materials Science, Multidisciplinary
WOS记录号WOS:000397478200016
引用统计
文献类型期刊论文
条目标识符http://ir.giec.ac.cn/handle/344007/14091
专题中国科学院广州能源研究所
作者单位1.South China Univ Technol, Dept Polymer Mat Sci & Engn, Guangzhou 510640, Peoples R China
2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China
3.Chinese Univ Hong Kong, Dept Chem, Hong Kong, Peoples R China
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GB/T 7714
Yang, Zongpeng,Chen, Xiaoli,Xu, Zhou,et al. Shear-Assisted Fabrication of Block Copolymer Agglomerates with Various Morphologies in Viscous Medium[J]. LANGMUIR,2017,33(11):2829-2836.
APA Yang, Zongpeng,Chen, Xiaoli,Xu, Zhou,Xiao, Meina,Hong, Liangzhi,&Ngai, To.(2017).Shear-Assisted Fabrication of Block Copolymer Agglomerates with Various Morphologies in Viscous Medium.LANGMUIR,33(11),2829-2836.
MLA Yang, Zongpeng,et al."Shear-Assisted Fabrication of Block Copolymer Agglomerates with Various Morphologies in Viscous Medium".LANGMUIR 33.11(2017):2829-2836.
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