Abstract
Citric acid based polyester has found widespread application in biomedical engineering such as tissue engineering, drug delivery and bio-imaging. The incorporation of nanohydroxyapatite in polymeric structure enhances the biocompatibility. The polyester, poly (Glycerol-Co-Citrate) was synthesised by catalyst free melt polycondensation. Nanohydroxyapatite powder was synthesised by sol gel method using calcium nitrate and phosphoric acid as calcium and phosphorus precursors respectively. The polyester n-HAp composite was prepared by solution mixing. The synthesised polyester and polymer nanocomposites were characterised by solubility studies, FTIR, 1HNMR and 13CNMR. The thermal stability of polymer nanocomposites was studied by Differential Scanning Colorimetry. The morphology of the polymer nanocomposite thin film was studied by SEM. The glass transition temperature of both the polymer and its composite are below room temperature which shows the elastomeric nature of these materials. Thus, the prepared polymer and its composite can be used as biomaterials.
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