Enhancing the Formation of Starch-based Hybrid Hydrogel by Incorporating Carboxyl Groups into Starch Chains
来源期刊：Journal Of Wuhan University Of Technology Materials Science Edition2013年第5期
论文作者：萧聪明 XU Shanjun
文章页码：1008 - 1011
摘 要：A novel starch-based hybrid hydrogel was formed by physical and mild steps.Firstly,aqueous solution of a mixture of starch maleic half-ester（SM） and poly（vinyl alcohol）（PVA） was subjected to freezing-thawing cycles to generate a physical functional SM/PVA hydrogel.Subsequently,the SM/PVA/ HA hybrid hydrogel was obtained through the alternate soaking process.The structure and morphology of the hydrogels were examined with Fourier transform infrared spectra（FTIR）,X-ray diffraction（XRD） analysis,thermogravimetric analysis（TGA） and scanning electron microscopy（SEM）.It was found that the existence of carboxylic groups on SM chains not only enabled SM/PVA hydrogel to be pH-sensitive,but also enhanced the formation of hydroxyapatite in the hydrogel via chelating calcium ions onto the matrix.
萧聪明，XU Shanjun
College of Materials Science and Engineering,Huaqiao University
摘 要：A novel starch-based hybrid hydrogel was formed by physical and mild steps.Firstly,aqueous solution of a mixture of starch maleic half-ester（SM） and poly（vinyl alcohol）（PVA） was subjected to freezing-thawing cycles to generate a physical functional SM/PVA hydrogel.Subsequently,the SM/PVA/ HA hybrid hydrogel was obtained through the alternate soaking process.The structure and morphology of the hydrogels were examined with Fourier transform infrared spectra（FTIR）,X-ray diffraction（XRD） analysis,thermogravimetric analysis（TGA） and scanning electron microscopy（SEM）.It was found that the existence of carboxylic groups on SM chains not only enabled SM/PVA hydrogel to be pH-sensitive,but also enhanced the formation of hydroxyapatite in the hydrogel via chelating calcium ions onto the matrix.
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