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Colloid and Polymer Science
Erschienen in: Colloid and Polymer Science 16-17/2010

01.11.2010 | Original Contribution

Comparison of aggregation behaviors between branched and linear block polyethers: MesoDyn simulation study

verfasst von: Houjian Gong, Guiying Xu, Xiaofeng Shi, Teng Liu, Zhiwei Sun

Erschienen in: Colloid and Polymer Science | Ausgabe 16-17/2010

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Abstract

The comparison of aggregation behaviors between the branched block polyether T1107 (polyether A) and linear polyether (EO)60(PO)40(EO)60 (polyether B) in aqueous solution are investigated by the MesoDyn simulation. Polyether A forms micelles at lower concentration and has a smaller aggregation number than B. Both the polyethers show the time-dependent micellar growth behaviors. The spherical micelles appear and then change to rod-like micelles with time evolution in the 10 vol% solution of polyether A. The micellar cluster appears and changes to pseudo-spherical micelles with time evolution in the 20 vol% solution of polyether A. However, the spherical micelles appear and change to micellar cluster with time evolution in the 20 vol% polyether B solution. The shear can induce the micellar transition of both block polyethers. When the shear rate is 1 × 105 s−1, the shear can induce the sphere-to-rod transition of both polyethers at the concentration of 10 and 20 vol%. When the shear rate is lower than 1 × 105 s−1, the huge micelles and micellar clusters can be formed in the 10 and 20 vol% polyether A systems under the shear, while the huge micelles are formed and then disaggregated with the time evolution in the 20 vol% polyether B system.
Vorheriger Artikel Preparation of polydivinylbenzene microspheres in supercritical carbon dioxide using acetone as cosolvent
Nächster Artikel Associative and segregative phase separations of poly(N-tert-butylacrylamide)/poly(acrylic acid) mixtures. Effect of solvent

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Metadaten
Titel
Comparison of aggregation behaviors between branched and linear block polyethers: MesoDyn simulation study
verfasst von
Houjian Gong
Guiying Xu
Xiaofeng Shi
Teng Liu
Zhiwei Sun
Publikationsdatum
01.11.2010
Verlag
Springer-Verlag
Erschienen in
Colloid and Polymer Science / Ausgabe 16-17/2010
Print ISSN: 0303-402X
Elektronische ISSN: 1435-1536
DOI
https://doi.org/10.1007/s00396-010-2294-7

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