Journal
EUROPEAN POLYMER JOURNAL
Volume 42, Issue 11, Pages 3145-3151Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.eurpolymj.2006.07.022
Keywords
PCL; DSC; SEM; CO(2)
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Microcellular foams were produced from polycaprolactone (PCL) using a method based on the rapid release of supercritical CO(2). The average pore size in the structure was found to vary with the selected vent time and the final microstructure was a combination of open and closed cells. Thermal analysis showed that the degree of crystallinity of all foams was in the region of 70%. This was found to be consistent with the observation of lamellar textures on the inner surface of the pores. There was also a pronounced decrease in compressive modulus with increasing vent time and average pore size. (c) 2006 Elsevier Ltd. All rights reserved.
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