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Enhancement of Poly(vinyl ester) Solubility in Supercritical CO2by Partial Fluorination: The Key Role of Polymer–Polymer Interactions

Girard, Etienne and Tassaing, Thierry and Camy, Séverine and Condoret, Jean-Stéphane and Marty, Jean-Daniel and Destarac, Mathias Enhancement of Poly(vinyl ester) Solubility in Supercritical CO2by Partial Fluorination: The Key Role of Polymer–Polymer Interactions. (2012) Journal of American Chemical Society, vol. 134 (n° 29). pp. 11920-11923. ISSN 0002-7863

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Official URL: http://dx.doi.org/10.1021/ja304585d

Abstract

An enhancement of poly(vinyl ester) solubility in supercritical carbon dioxide (sc-CO2) can be achieved by decreasing the strength of the polymer−polymer interactions. To demonstrate this, a library of statistical copolymers of vinyl acetate and vinyl trifluoroacetate was synthesized by RAFT/MADIX polymerization with varying compositions at a given numberaverage molecular weight. These copolymers exhibited unprecedentedly low cloud-point pressures in sc-CO2 at 40 °C compared with previously reported poly(vinyl esters). Surface tension measurements combined with a computational approach evidenced the prominent role played by polymer−polymer interactions.

Item Type:Article
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Other partners > Institut Polytechnique de Bordeaux - IPB (FRANCE)
Other partners > Université de Bordeaux 1 (FRANCE)
Université de Toulouse > Université Paul Sabatier-Toulouse III - UPS (FRANCE)
Laboratory name:
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Deposited By: Vincent GERBAUD
Deposited On:13 Nov 2013 12:54

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