PMID: 15348484Sep 7, 2004Paper

Thermal properties of thermoplastic starch/synthetic polymer blends with potential biomedical applicability

Journal of Materials Science. Materials in Medicine
J F ManoR L Reis

Abstract

Previous studies shown that thermoplastic blends of corn starch with some biodegradable synthetic polymers (poly(epsilon-caprolactone), cellulose acetate, poly(lactic acid) and ethylene-vinyl alcohol copolymer) have good potential to be used in a series of biomedical applications. In this work the thermal behavior of these structurally complex materials is investigated by differential scanning calorimetry (DSC) and by thermogravimetric analysis (TGA). In addition, Fourier-transform infrared (FTIR) spectroscopy was used to investigate the chemical interactions between the different components. The endothermic gelatinization process (or water evaporation) observed by DSC in starch is also observed in the blends. Special attention was paid to the structural relaxation that can occur in the blends with poly(lactic acid) at body temperature that may change the physical properties of the material during its application as a biomaterial. At least three degradation mechanisms were identified in the blends by means of using TGA, being assigned to the mass loss due to the plasticizer leaching, and to the degradation of the starch and the synthetic polymer fractions. The non-isothermal kinetics of the decomposition processes was analyzed ...Continue Reading

Citations

Jan 9, 2008·Journal of Tissue Engineering and Regenerative Medicine·I B LeonorT Nakamura
Jul 19, 2013·BioMed Research International·Gizele Cardoso FontesMaria Helena Miguez da Rocha-Leão
Jan 1, 2015·International Scholarly Research Notices·Helen ChattopadhyaySriparna Datta
Mar 12, 2005·Journal of Biomedical Materials Research. Part a·G A SilvaR L Reis
May 15, 2013·Journal of Biomedical Materials Research. Part a·Weichang LiYuanming Zhang
Nov 2, 2019·Environmental Science and Pollution Research International·Ebrahim MoradiAli Akbar Asgharinezhad
Jul 9, 2013·Dalton Transactions : an International Journal of Inorganic Chemistry·Sanny VermaSuman L Jain
Aug 24, 2013·Dalton Transactions : an International Journal of Inorganic Chemistry·Sanny VermaJacques Muzart
Jul 16, 2019·NPJ Science of Food·Chitradurga Obaiah MohanC N Ravishankar
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Feb 24, 2007·The European Physical Journal. E, Soft Matter·D K BozanićT Radhakrishnan
Mar 9, 2021·Journal of Food Science and Technology·Zaira E Cabrera-CanalesCarlos A Gómez-Aldapa
Jun 3, 2021·Materials·Mohamad Kahar Ab WahabPrzemysław Postawa
Jul 12, 2005·Biomacromolecules·Gianluca CiardelliPaolo Giusti

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