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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
发表期刊POLYMER
卷号90页码:276-281
摘要Reversible 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.
文章类型Article
关键词Disassembly Reversible Transition Temperature
WOS标题词Science & Technology ; Physical Sciences
DOI10.1016/j.polymer.2016.03.036
研究领域[WOS]Polymer Science
关键词[WOS]BLOCK-COPOLYMER ; MULTICOMPARTMENT MICELLES ; MORPHOLOGICAL-CHANGES ; WORMLIKE MICELLES ; PHASE-SEPARATION ; TEMPERATURE ; NANOPARTICLES ; AGGREGATION ; SYSTEM ; SURFACTANT
收录类别SCI
语种英语
WOS类目Polymer Science
WOS记录号WOS:000373303800030
引用统计
被引频次:8[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.giec.ac.cn/handle/344007/11227
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, 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
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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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