Gradient porosity poly(dicyclopentadiene)

This article describes the preparation of gradient porosity thermoset polymers. The technique used is based on polymerizing a solution of cross-linkable dicyclopentadiene and 2-propanol. The forming polymer being insoluble in 2-propanol, phase separation occurs. Subsequent drying of the 2-propanol g...

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Bibliographic Details
Published in:Journal of materials research 2001-07, Vol.16 (7), p.2045-2052
Main Authors: Martina, A. Della, Hilborn, J. G.
Format: Article
Language:English
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Summary:This article describes the preparation of gradient porosity thermoset polymers. The technique used is based on polymerizing a solution of cross-linkable dicyclopentadiene and 2-propanol. The forming polymer being insoluble in 2-propanol, phase separation occurs. Subsequent drying of the 2-propanol gives porosities up to 80%. An apparatus was built to produce a gradient in 2-propanol concentration in a flask, resulting in polymerized gradient porosity rods. The resulting materials have been characterized by scanning electron microscopy (SEM) and density measurements. A mathematical model which allows prediction of the gradient produced is also presented.
ISSN:0884-2914
2044-5326
DOI:10.1557/JMR.2001.0280