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Phase Transitions in Polymer Blends and Block Copolymers Induced by Selective Dilation with Supercritical CO2

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Supercritical Fluids

Part of the book series: NATO Science Series ((NSSE,volume 366))

Abstract

Supercritical fluids (SCFs) offer a number of advantages for the synthesis and processing of polymeric materials. Early work in the field focused on the high-pressure polymerization of ethylene or exploited the adjustable physicochemical properties of SCFs, including density and dielectric constant, for the fractioeation, extraction and impregnation of polymers.1 Recently, the field has expanded to include polymer synthesis and modification by reactive processing in the presence of CO2. With few exceptions these are heterogeneous processes that are facilitated by enhanced transport within the SCF-swollen polymer and are sensitive to the partitioning of solutes between the fluid and polymer phases. Examples include heterogeneous dispersion polymerizations in CO2 2, condensation reactions in dilated melts3, and the preparation of composite materials by conducting chemical reactions directly within solid polymers swollen by CO2 4.

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Author information

Authors and Affiliations

  1. Departments of Chemical Engineering and Polymer Science and Engineering, University of Massachusetts, Amherst, MA, 01003, USA

    J. J. Watkins, G. D. Brown & V. S. Ramachandrarao

  2. University of Massachusetts, Amherst, MA, 01003, USA

    M. A. Pollard & T. P. Russell

Authors
  1. J. J. Watkins
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  2. G. D. Brown
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  3. M. A. Pollard
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  4. V. S. Ramachandrarao
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  5. T. P. Russell
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Editor information

Editors and Affiliations

  1. Department of Chemical Engineering, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, USA

    Erdogan Kiran

  2. Department of Chemical Engineering, Princeton University, Princeton, New Jersey, USA

    Pablo G. Debenedetti

  3. Department of Chemical Technology, Delft University of Technology, Delft, The Netherlands

    Cor J. Peters

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Watkins, J.J., Brown, G.D., Pollard, M.A., Ramachandrarao, V.S., Russell, T.P. (2000). Phase Transitions in Polymer Blends and Block Copolymers Induced by Selective Dilation with Supercritical CO2 . In: Kiran, E., Debenedetti, P.G., Peters, C.J. (eds) Supercritical Fluids. NATO Science Series, vol 366. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-3929-8_11

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  • DOI: https://doi.org/10.1007/978-94-011-3929-8_11

  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-0-7923-6236-4

  • Online ISBN: 978-94-011-3929-8

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