考察了NaY分子筛负载高碘酸的条件,介绍了负载型H5IO6/NaY分子筛氧化纤维素的反应,H5IO6/NaY分子筛氧化纤维素的产物用红外光谱和X射线衍射表征,结果表明,H5IO6/NaY分子筛有效降低了纤维素的结晶度,而且可以将纤维素氧化成双醛纤维素.H5IO6/NaY分子筛与高碘酸氧化纤维素的实验对比表明,H5IO6/NaY分子筛能在40℃氧化纤维素8 h获得较高氧化度,比高碘酸氧化效率有所提高.
参考文献
[1] | A.J. Varma;M.P. Kullkarni .Oxidation of cellulose under controlled conditions[J].Polymer Degradation and Stability,2002(1):25-27. |
[2] | Zu Pei Liang;Ya Qing Feng;Shu Xian Meng;Zhi Yan Liang .Equilibrium and kinetic modeling of adsorption of urea nitrogen onto chitosan coated dialdehyde cellulose[J].Process biochemistry,2005(10):3218-3224. |
[3] | 熊犍,叶君,何小维,吴奏谦.改进非均相高碘酸氧化纤维素反应[J].高分子材料科学与工程,2000(03):172-175. |
[4] | Paolo Calvini;Andrea Gorassini;Giorgio Luciano;Enrico Franceschi .FTIR and WAXS analysis of periodate oxycellulose: Evidence for a cluster mechanism of oxidation[J].Vibrational Spectroscopy: An International Journal devoted to Applications of Infrared and Raman Spectroscopy,2006(2):177-183. |
[5] | Ung-Jin Kim;Masahisa Wada;Shigenori Kuga .Solubilization of dialdehyde cellulose by hot water[J].Carbohydrate Polymers: Scientific and Technological Aspects of Industrially Important Polysaccharides,2004(1):7-10. |
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