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Micro- vs. macro-phase separation in binary blends of poly(styrene)-poly(isoprene) and poly(isoprene)-poly(ethylene oxide) diblock copolymers

Frielinghaus, H., Hermsdorf, N., Almdal, K., Mortensen, K., Messe, L., Corvazier, L., Fairclough, J.P.A., Ryan, A.J., Olmsted, P.D. and Hamley, I.W. (2001) Micro- vs. macro-phase separation in binary blends of poly(styrene)-poly(isoprene) and poly(isoprene)-poly(ethylene oxide) diblock copolymers. Europhysics Letters, 53 (5). pp. 680-686. ISSN 1286-4854

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Abstract

In this paper we present an experimentally determined phase diagram of binary blends of the diblock copolymers poly(styrene)-poly(isoprene) and poly(isoprene)-poly(ethylene oxide). At high temperatures, the blends form an isotropic mixture. Upon lowering the temperature, the blend macro-phase separates before micro-phase separation occurs. The observed phase diagram is compared to theoretical predictions based on experimental parameters. In the low-temperature phase the crystallisation of the poly(ethylene oxide) block influences the spacing of the ordered phase.

Item Type: Article
Copyright, Publisher and Additional Information: © 2001 EDP Sciences. Reproduced in accordance with the publisher's self-archiving policy.
Institution: The University of Sheffield, The University of Leeds
Academic Units: The University of Leeds > Faculty of Maths and Physical Sciences (Leeds) > School of Physics and Astronomy (Leeds)
The University of Sheffield > Faculty of Science (Sheffield) > Department of Chemistry (Sheffield)
The University of Leeds > University of Leeds Research Centres and Institutes > Interdisciplinary Research Centre in Polymer Science and Technology (Leeds)
The University of Leeds > Faculty of Maths and Physical Sciences (Leeds) > School of Chemistry (Leeds)
Depositing User: Repository Officer
Date Deposited: 08 Feb 2007
Last Modified: 04 Jun 2014 11:29
Published Version: http://dx.doi.org/10.1209/epl/i2001-00205-7
Status: Published
Publisher: EDP Sciences
Refereed: Yes
Identification Number: 10.1209/epl/i2001-00205-7
URI: http://eprints.whiterose.ac.uk/id/eprint/1952

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