Abstract
The interaction of scFluids and polymers are governed by the intermolecular forces between solvent-solvent, solvent-polymer segment, and polymer segment-segment pairs. Because of its symmetry, within reasonable pressure values, CO2 does not have a dipole moment, but it does have a quadrupole moment significant over a much shorter distance than dipolar interactions. The quadrupole moment and the Lewis acidity of CO2 imparts to the carbon dioxide the peculiarity to be a solvent for selected classes of polymers like perfluorinated polyacrylates, polysiloxanes and polyether-polycarbonate diblock copolymers [1–3].
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Filardo, G., Galia, A., Giaconia, A. (2003). Modification of Polymers in Supercritical Carbon Dioxide. In: Aresta, M. (eds) Carbon Dioxide Recovery and Utilization. Springer, Dordrecht. https://doi.org/10.1007/978-94-017-0245-4_8
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DOI: https://doi.org/10.1007/978-94-017-0245-4_8
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