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Photopolymerization of Pluronic F127 diacrylate: a colloid-templated polymerization

By Manuela Di Biase, Piero de Leonardis, Valeria Castelletto, Ian W. Hamley, Brian Derby and Nicola Tirelli

Abstract

Pluronic F127 diacrylate (F127DA) is a bifunctional acrylate and as such it should in principle produce macroscopically cross-linked materials; however, its photopolymerization in water does not lead to 3D-extended hydrogels. The main species present after photopolymerization appear to be cross-linked micelles, which indicates that the micellar morphology of F127DA has a template effect on the polymerization. The structural analogy causes the physical state of precursor and polymerized materials to be very similar for a wide range of concentrations (5–25% wt) and temperatures (10–37 °C). Also the long-range morphology of F127DA appears to have a template effect: samples photopolymerized in a micellar gel state and redispersed at high concentration (25% wt) show a long-range organization that depended on the concentration and therefore on the order of the precursor

Publisher: Royal Society of Chemistry
Year: 2011
OAI identifier: oai:centaur.reading.ac.uk:20004
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