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A comparative study of polyethylene oxide/nanoclay composite preparation via supercritical carbon dioxide and melt processing

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Summary

The efficacy of supercritical carbon dioxide (ScCO2) treatment compared with conventional melt processing methods in preparing nanoclay composites from poly(ethylene oxide) (PEO) of varying molecular weight (400–10000) and a fluorinated ethoxide (EO) was studied. At low polymer loadings (∼20 wt % PEO), the results obtained using either method were broadly consistent for each molecular weight of PEO studied, although ScCO2 processing yielded more homogenous samples. The ScCO2 technique was found to be most effective when used with PEO of higher molecular weight (10000) or fluorinated EO, which is otherwise difficult to process using conventional techniques.

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Authors and Affiliations

  1. Materials Ireland Polymer Research Centre, School of Physics, University of Dublin Trinity College, College Green, 2, Dublin, Ireland

    Gordon Armstrong & Keith Fortune

  2. University of Limerick, National Technological Park, Stokes Research Institute, Castletroy, Co., Limerick, Ireland

    Gordon Armstrong

Authors
  1. Gordon Armstrong
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  2. Keith Fortune
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Correspondence to Gordon Armstrong.

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Armstrong, G., Fortune, K. A comparative study of polyethylene oxide/nanoclay composite preparation via supercritical carbon dioxide and melt processing. Polym. Bull. 59, 439–446 (2007). https://doi.org/10.1007/s00289-007-0784-7

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  • DOI: https://doi.org/10.1007/s00289-007-0784-7

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