Journal
POLYMER
Volume 48, Issue 13, Pages 3771-3780Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.polymer.2007.05.002
Keywords
poly(styrene-co-m ethyl methacrylate); supercritical carbon dioxide; foam morphology
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In this study the foaming of poly (styrene-co-methyl methacrylate) (SMMA) using supercritical carbon dioxide is investigated. The effect of different foaming parameters such as temperature and pressure is studied in a quantitative and systematic way, with the aim to control and predict the resulting foam morphology. It is shown that once the polymer properties, such as the glass transition temperature and the solubility Of CO2 are known, full control of the desired foam morphology can be obtained by a proper selection of temperature, pressure and depressurization rate. (C) 2007 Elsevier Ltd. All rights reserved.
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