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A New Approach for the Synthesis of Nanostructured Polyurethane-Hydroxylapatite-based Hybrid Materials

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A New Approach for the Synthesis of Nanostructured Polyurethane-Hydroxylapatite-based Hybrid Materials

Laura M˘ad˘alina Popescua,b, Roxana Mioara Piticescub, Tinca Buruian˘aa, Eugeniu Vasilec, Roxana Trus¸c˘ac, and Viorel B˘adilit¸˘ab

aRomanian Academy, Institute ofMacromolecular Chemistry “Petru Poni”, 41A Grigore Ghica Voda Alley, Iasi, 6600, Romania

bNational R& D Institute for Non-Ferrous and Rare Metals, 102 Biruintei Blvd., Pantelimon, 077145, Ilfov, Romania

cS.C. METAV C-D, Bucharest, Romania

Reprint requests to Dr. Laura M˘ad˘alina Popescu. Fax: +40213522048. E-mail: mpopescu@imnr.ro Z. Naturforsch.2011,66b,36 – 42; received September 2, 2010

The structural properties ofcomposites prepared by a hydrothermal method in high-pressure con- ditions and the role ofpressure in the formation ofhydroxylapatite-polyurethane (HAp-PU) materials with strong interactions between the two components were investigated. X-Ray diffraction (XRD), high-resolution transmission electron microscopy (HRTEM), FT-IR and NMR analyses were used to characterize the composite powders from a structural, morphological and compositional point of view. Both FT-IR and NMR spectroscopies indicate interactions between hydroxylapatite and acid polyurethane.

Key words:Hybrid Composites, Nanoparticles, Hydrothermal Method, Infrared Spectroscopy, Transmission Electron Microscopy

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