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Modeling of the curing kinetics of an acrylic bone cement modified with hydroxyapatite

By E. M. Mendizábal, A. Quiroz, M.A. Olmos, C.F. Jasso, L. Morejon, J.A. Delgado and N. Davidenko


In this work, setting kinetics of a poly(methylmethacrylate-co-styrene) bone cement with and without hydroxyapatite filler were studied. Three types of hydroxyapatite with different morphologies were used. Polymerization kinetics were followed by Differential Scanning Calorimetry (DSC). A modification to the Maffezoli kinetic model for bone cement curing process is presented. The proposed kinetic model can predict the whole curing kinetics process of the bone cements studied here. It clearly follows the delay in the " autoacceleration effect" caused by the hydroxyapatites and can predict the behavior of kt, as the system approaches limiting conversion

Topics: Bone cement; Hydroxyapatitie; Kinetic model
Publisher: 'Informa UK Limited'
Year: 2003
DOI identifier: 10.1080/00914030390251805
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