| 一点法分析壳聚糖特性粘度偏差值的研究 |
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| 引用本文： | 李建,毕松梅.一点法分析壳聚糖特性粘度偏差值的研究[J].安徽机电学院学报,2009(4):16-18. |
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| 作者姓名： | 李建 毕松梅 |
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| 作者单位： | 安徽工程科技学院安徽省高等学校纺织面料重点实验室,安徽芜湖241000 |
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| 基金项目： | 基金项目：安徽省高校自然科学基金资助项目（2003kj036） |
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| 摘 要： | 在25℃、0．1mol／LCH3COONa-0．2mol／LCH3COOH溶液作为溶剂的条件下，通过常规外推法测定脱乙酰度为98％的壳聚糖粘度值，并采用三种不同的一点法经验公式分析壳聚糖特性粘度值的偏差，同时进行了比较分析．实验结果表明：采用一点法公式η]=（ηsp＋31nηr）／4c计算所得的脱乙酰度为98%的壳聚糖特性粘度值的偏差值最小，从而得出一点法η]=（ηsp＋31nηr）／4C公式应用在常规外推法中更能准确的测定脱乙酰度为98％的壳聚糖的特性粘度值．
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| 关 键 词： | 壳聚糖 特性粘度 一点法 |
Research of intrinsic viscosity deviation of chitosan analyzing by one-point method |
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| LI Jian,BI Song-mei.Research of intrinsic viscosity deviation of chitosan analyzing by one-point method[J].Journal of Anhui Institute of Mechanical and Electrical Engineering,2009(4):16-18. |
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| Authors: | LI Jian BI Song-mei |
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| Affiliation: | (Anhui Key Laboratory of Textile Materials, Anhui University of Technology and Science, Wuhu 241000, China) |
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| Abstract: | The intrinsic viscosity of chitosan with 98% degree of deacetylation has been determined by routine extrapolation method under conditions of 25 ℃, 0.1 mol/LCH3COONa-0.2 mol/LCH3COOH as solvent. Three different one-point empirical equations were used to analyze the deviation of the intrinsic viscosity of chitosan,then a comparative analysis was made. The results show that the deviation between the intrinsic viscosity of chitosan with 98 % degree of deacetylation calculated by the one-point empirical equation η] = （ηsp ＋31n ηr）/4C is the smallest of all, so this empirical equation is suitable for highly accurate determing of the intrinsie viscosity of chitosan with 98% degree of deacetylation. |
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| Keywords: | chitosan intrinsie viscosity one point method |
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