Journal
JOURNAL OF COLLOID AND INTERFACE SCIENCE
Volume 456, Issue -, Pages 174-181Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2015.06.005
Keywords
Volume swelling; Interfacial tension; Ternary mixture system; Plasticizing; Nucleation; Simha-Somcynsky EOS
Categories
Funding
- Consortium for Cellular and Microcellular Plastics
- Natural Sciences and Engineering Research Council of Canada
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We investigated the interaction of blended carbon dioxide (CO2) and dimethyl ether (DME) with polystyrene (PS) through volume swelling and interfacial tension. The experiments were carried out over a temperature range of 423-483 K, and the pressure was varied from 6.89 MPa to 20.68 MPa. With an incremental concentration of DME in the blend, the volume swelling increased while the interfacial tension between the PS/blend gas mixture and the blend gas decreased. The validity of the Simha-Somcynsky (SS) equation of state (EOS) for the ternary system was established by comparing experimentally measured volume swelling to that obtained via SS-MS. (C) 2015 Elsevier Inc. All rights reserved.
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