Shear-Assisted Fabrication of Block Copolymer Agglomerates with Various Morphologies in Viscous Medium

doi:10.1021/acsiangmuir.7b00119

CORC > 广州能源研究所 > 中国科学院广州能源研究所 > 中国科学院广州能源研究所

	Shear-Assisted Fabrication of Block Copolymer Agglomerates with Various Morphologies in Viscous Medium
	Yang, Zongpeng 1; Chen, Xiaoli 2; Xu, Zhou 1; Xiao, Meina 1; Hong, Liangzhi 1; Ngai, To 3
刊名	LANGMUIR
	2017-03-21
卷号	33 期号:11 页码:2829-2836
DOI	10.1021/acsiangmuir.7b00119
文献子类	Article
英文摘要	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.
WOS关键词	DRUG NANOPARTICLE FORMATION ; IN-WATER EMULSIONS ; ONE-STEP FORMATION ; PEG-B-PCL ; ENZYMATIC BIODEGRADATION ; BIOMEDICAL APPLICATIONS ; EFFICIENT SEPARATION ; TRIBLOCK COPOLYMERS ; MULTIPLE EMULSIONS ; DIBLOCK COPOLYMER
语种	英语
WOS记录号	WOS:000397478200016
资助机构	National Natural Science Foundation of China(21374031 ; Fundamental Research Funds for the Central Universities ; 21574110)
内容类型	期刊论文
源URL	[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
推荐引用方式 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.