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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
Source PublicationLANGMUIR
Volume33Issue:11Pages:2829-2836
AbstractIn 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.
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
DOI10.1021/acsiangmuir.7b00119
WOS Subject ExtendedChemistry ; Materials Science
WOS KeywordDRUG NANOPARTICLE FORMATION ; IN-WATER EMULSIONS ; ONE-STEP FORMATION ; PEG-B-PCL ; ENZYMATIC BIODEGRADATION ; BIOMEDICAL APPLICATIONS ; EFFICIENT SEPARATION ; TRIBLOCK COPOLYMERS ; MULTIPLE EMULSIONS ; DIBLOCK COPOLYMER
Indexed BySCI
Language英语
Funding OrganizationNational Natural Science Foundation of China(21374031 ; Fundamental Research Funds for the Central Universities ; 21574110)
WOS SubjectChemistry, Multidisciplinary ; Chemistry, Physical ; Materials Science, Multidisciplinary
WOS IDWOS:000397478200016
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/14091
Collection中国科学院广州能源研究所
Affiliation1.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
Recommended Citation
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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