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

SummaryThe 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...

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Bibliographic Details
Published in:Polymer bulletin (Berlin, Germany) Germany), 2007-10, Vol.59 (3), p.439-445
Main Authors: ARMSTRONG, Gordon, FORTUNE, Keith
Format: Article
Language:English
Subjects:
Applied sciences
Carbon dioxide
Comparative studies
Composites
Ethylene oxide
Exact sciences and technology
Fluorination
Forms of application and semi-finished materials
Molecular weight
Polyethylene oxide
Polymer industry, paints, wood
Technology of polymers
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Summary:SummaryThe 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.
ISSN:0170-0839
1436-2449
DOI:10.1007/s00289-007-0784-7