Preparation of Xanthan Gum-g-N-Vinylpyrrolidone by Radiation and adsorption property of phenol and polyphenol

文献类型： 外文期刊

第一作者： Li Yong-fu

作者： Li Yong-fu;Ha Yi-ming;Li Yan-jie;Wang Fang;Li Yong-fu;Tao Le-ren;Li Yan-jie

作者机构：

关键词： Xanthan gum;N-Vinylpyrrolidone;Radiation;phenol;polyphenol

期刊名称：APPLICATION OF CHEMICAL ENGINEERING, PTS 1-3

ISSN： 1022-6680

年卷期： 2011 年 236-238 卷

页码：

收录情况： SCI

摘要： Simultaneous radiation grafting method (Co-60 gamma as radiation source) was used to prepare xanthan gum - graft - N-Vinypyrrolidone (XG-g-NVP). FT-IR spectra showed that grafting reaction occurred in NVP Vinyl part and lactam structure was retained. Thermo gravimetric analysis showed that, XG-g-NVP enhanced thermal stability of xanthan gum. XRD showed the crystallinity increased after grafting. At the grafting yield of 623%, XG-g-NVP had the maximum adsorption capacity of phenol and TP, the adsorption amount of which were 0.76 g/g and 2.85 g/g respectively. PH value had the different effects on the adsorption of phenol and tea polyphenols by XG-g-NVP.

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