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Application of Photon Correlation Spectroscopy to the Study of Diffusional Dynamics in Compatible Polymer Blends

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Reactive and Flexible Molecules in Liquids

Part of the book series: NATO ASI Series ((ASIC,volume 291))

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Abstract

Photon correlation spectroscopy has been employed to measure dynamic and static structure factor in compatible polymer blends. For the poly(ethylene oxide)(PEO)/poly(propylene oxide)(PPO) blend containing a volume fraction φ=0.87 of PEO and with constant molecular weight of PPO, the mutual diffusion and transport coefficients, D and Do, decrease with the degree of polymerization NPEO of the PEO component. The D° coefficient exhibits a weak NPEO dependence in accord with the “fast mode theory” of mutual diffusion. For the PPO/polystyrene (PS) mixture at extremely low concentrations of PS we have been able to detect for the first time to our knowledge two distinct concentration dependences of the coefficient D.

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Author information

Authors and Affiliations

  1. Foundation for Research and Technology — Hellas and Chemistry Department, University of Crete, P.O. Box 1527, 711 10, Heraklion, Crete, Greece

    J. Kanetakis, A. Rizos & G. Fytas

Authors
  1. J. Kanetakis
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  2. A. Rizos
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  3. G. Fytas
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Editor information

Editors and Affiliations

  1. Fakultät für Chemie, Universität Bielefeld, Bielefeld, Germany

    Th. Dorfmüller

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© 1989 Kluwer Academic Publishers

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Kanetakis, J., Rizos, A., Fytas, G. (1989). Application of Photon Correlation Spectroscopy to the Study of Diffusional Dynamics in Compatible Polymer Blends. In: Dorfmüller, T. (eds) Reactive and Flexible Molecules in Liquids. NATO ASI Series, vol 291. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-1043-0_13

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  • DOI: https://doi.org/10.1007/978-94-009-1043-0_13

  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-94-010-6961-8

  • Online ISBN: 978-94-009-1043-0

  • eBook Packages: Springer Book Archive

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