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Journal of Polymer Research
Published in: Journal of Polymer Research 11/2012

01-11-2012 | Original Paper

Solvent vapor induced structural evolution of micelle clusters and square slices that form in PS-b-PEO solutions

Authors: Hu Mao, Hongfei Li, Yingrui Shang, Jingqing Li, Conghua Lu, Lijia An, Shichun Jiang

Published in: Journal of Polymer Research | Issue 11/2012

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Abstract

Micelle clusters and square slices that formed in different polystyrene-b-poly(ethylene oxide) (PS-b-PEO) solutions were observed with AFM. This diblock copolymer assembled into small spherical micelles and then micelle clusters (diameters: 100–400 nm) after the PS-b-PEO/toluene solution had been aged for 24 h at room temperature. Square slices were obtained from solutions aged for two months. Solvent vapor induced morphological and structural transitions of the micelle clusters and the stability of the square slices on Si wafers were investigated. The results showed that the solvent vapor induced morphology of the sample aged for 24 h was more ordered than that aged for two months. Possible mechanisms for the formation of these structures in the solutions and the vapor-induced structural transition were proposed.
previous article Dilute solution properties of some polycarboxybetaines with antibacterial activity
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Metadata
Title
Solvent vapor induced structural evolution of micelle clusters and square slices that form in PS-b-PEO solutions
Authors
Hu Mao
Hongfei Li
Yingrui Shang
Jingqing Li
Conghua Lu
Lijia An
Shichun Jiang
Publication date
01-11-2012
Publisher
Springer Netherlands
Published in
Journal of Polymer Research / Issue 11/2012
Print ISSN: 1022-9760
Electronic ISSN: 1572-8935
DOI
https://doi.org/10.1007/s10965-012-0011-6

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