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Mechanism study of reversible transition between self-assembly and disassembly of ABC triblock copolymer micelles
Wang, Zhida1; Gan, Yuan1,2; Yan, Changfeng1; Huang, Ying1,2; Jiang, Wei3
2016-05-04
Source PublicationPOLYMER
Volume90Pages:276-281
AbstractReversible transition of self-assembly and disassembly for PS720-P2VP(200)-PEO375 multicompartment micelles in aqueous solution induced solely by changing temperature has been investigated. The shuttle-like micelles, formed from a second self-assembly of nano-sized spheres at 20 degrees C, will disassemble to small spherical micelles as the temperature increases to 40 degrees C. Cooling the system back to 20 degrees C regenerates the large-sized micelles, while the regeneration at low temperature is much slower than the disassembly at high temperature. A critical temperature is found at the intermediate regime of 30 degrees C, at which the micelle reaches the maximum dimension. However, the critical temperature is observed to be varied with the variation of the molecular weights of triblock copolymers and shifts to lower region with the decrease of the fraction of hydrophilic blocks. This reversible transition is considered as a result from the combination of the second-assembly of spherical micelles and the interaction parameter between the solvent and the hydrophobic block, and has great potential in application in drug delivery and release triggered by temperature. (C) 2016 Elsevier Ltd. All rights reserved.
SubtypeArticle
KeywordDisassembly Reversible Transition Temperature
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1016/j.polymer.2016.03.036
WOS Subject ExtendedPolymer Science
WOS KeywordBLOCK-COPOLYMER ; MULTICOMPARTMENT MICELLES ; MORPHOLOGICAL-CHANGES ; WORMLIKE MICELLES ; PHASE-SEPARATION ; TEMPERATURE ; NANOPARTICLES ; AGGREGATION ; SYSTEM ; SURFACTANT
Indexed BySCI
Language英语
WOS SubjectPolymer Science
WOS IDWOS:000373303800030
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Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/11227
Collection中国科学院广州能源研究所
Affiliation1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China
3.Chinese Acad Sci, Changchun Inst Appl Chem, Changchun 130022, Peoples R China
First Author AffilicationGuangZhou Institute of Energy Conversion,Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Wang, Zhida,Gan, Yuan,Yan, Changfeng,et al. Mechanism study of reversible transition between self-assembly and disassembly of ABC triblock copolymer micelles[J]. POLYMER,2016,90:276-281.
APA Wang, Zhida,Gan, Yuan,Yan, Changfeng,Huang, Ying,&Jiang, Wei.(2016).Mechanism study of reversible transition between self-assembly and disassembly of ABC triblock copolymer micelles.POLYMER,90,276-281.
MLA Wang, Zhida,et al."Mechanism study of reversible transition between self-assembly and disassembly of ABC triblock copolymer micelles".POLYMER 90(2016):276-281.
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