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Temperature dependent cubic and hexagonal close packing in micellar structures
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Materials Physics.
2014 (English)In: Soft Matter, ISSN 1744-683X, E-ISSN 1744-6848, Vol. 10, no 42, 8420-8426 p.Article in journal (Refereed) Published
Abstract [en]

The interfacial structure and phase diagram of a micellar solution formed by the three block copolymer ( EO20-PO70-EO20) also known as P123 solved in deuterated water close to a solid boundary is investigated with respect to temperature. We find a hysteretic behavior of the d-spacing of the micellar crystal and a spontaneous change in the lateral correlation length going hand in hand with a structural reorganization between cubic and hexagonal. The phase transitions may be initiated by a change in the shape of the micelles from spherical to elongated together with a minimization of the polymer water interface.

Place, publisher, year, edition, pages
2014. Vol. 10, no 42, 8420-8426 p.
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Chemical Sciences Physical Sciences
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URN: urn:nbn:se:uu:diva-236027DOI: 10.1039/c4sm01569jISI: 000343037600005OAI: oai:DiVA.org:uu-236027DiVA: diva2:763324
Available from: 2014-11-14 Created: 2014-11-12 Last updated: 2017-12-05Bibliographically approved

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Wolff, Max

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