| 羧甲基纤维素钠水凝胶的制备及其生物降解性研究 |
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| 引用本文： | 聂华荣,柳明珠. 羧甲基纤维素钠水凝胶的制备及其生物降解性研究[J]. 功能高分子学报, 2003, 16(4): 553-556 |
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| 作者姓名： | 聂华荣 柳明珠 |
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| 作者单位： | 兰州大学化学化工学院,应用有机化学国家重点实验室,甘肃,兰州,730000 |
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| 基金项目： | 甘肃省自然科学基金项目(ZS021-A25-049-N) |
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| 摘 要： | 用羧甲基纤维素钠(CMC—Na)制得了含水量高达98％的水凝胶，考察了防腐剂、交联剂、无机态氮素、有机态氮素、碳水化合物的加入量以及环境中pH值等因素对生物降解性的影响。结果表明：制备条件不同，水凝胶的生物降解性不同；环境中一定量铵根离子的存在有利于水凝胶的生物降解；在pH=5．2的环境中纤维素酶活性最高，降解程度最大。
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| 关 键 词： | 羧甲基纤维素钠 水凝胶 制备 生物降解性 反应条件 生物材料 |
| 文章编号： | 1008-9357(2003)03-0553-04 |
| 修稿时间： | 2003-06-02 |
Preparation and Bio-degradation Properties of Hydrogel from Sodium Carboxymethylcellulose |
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| ME Hua-rong,LIU Ming-zhu. Preparation and Bio-degradation Properties of Hydrogel from Sodium Carboxymethylcellulose[J]. Journal of Functional Polymers, 2003, 16(4): 553-556 |
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| Authors: | ME Hua-rong LIU Ming-zhu |
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| Abstract: | A hydrogel was prepared from sodium carboxymethylcellulose( CMC-Na), and its water content is 98 %. The effects of the amount of crosslinker , antiseptic, inorgano-nitrogen, organo-nitrogen and carbohydrate on the bio-degradation were investigated. Moreover we also investigated the effect of pH in the environment on the hydrogel bio-degradation. The results showed that the hydrogel would have different bio-degradation, if it was prepared under different conditions; The bio-degradation of hydrogel was enhanced by addition of the certain amount of ammonium. The degree of degradation reached the maximum, when the pH of environment was about 5.2. |
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| Keywords: | sodium carboxymethylcellulose bio-degradation hydrogel cellulases |
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