Abstract
ABSTRACT: We studied thermal frontal polymerization using a re-dox systeminan attempt to lower the temperature of thefrontallypolymerizable system while increasing the front velocity so as toobtain a self-sustaining front in a thinner layer than without theredox components. A cobalt-containing polymer with a meltingpoint of 63 C (Intelimer 6050X11) and cumene hydroperoxidewere used with a triacrylate. The use of the Intelimer decreasedthe front velocity but allowed fronts to propagate in thinner layersand with more filler while still having a pot life of days. Nonplanarmodes of propagation occurred. Fronts propagated faster when6-O-palmitoyl- L -ascorbic acid was used as a reductant. Interest-ingly, fronts were also faster with the reductant even without theIntelimer if kaolin clay was the filler; however, the pot life was sig-nificantly reduced. V C 2012 Wiley Periodicals, Inc. J Polym Sci PartA: Polym Chem 50: 2337–2343, 2012 KEYWORDS: acrylate; addition polymerization; frontal polymer-ization; kinetics; radical polymerization; redox polymersINTRODUCTION
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