| 苯-乙醇两相介质中制备的羧甲基纤维素水溶液粘性行为(英文) |
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| 引用本文： | 李桂凤,程发,冯建新,张镜吾.苯-乙醇两相介质中制备的羧甲基纤维素水溶液粘性行为(英文)[J].天津大学学报(英文版),1998(2). |
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| 作者姓名： | 李桂凤 程发 冯建新 张镜吾 |
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| 作者单位： | 天津大学石化技术开发中心，天津大学理学院 |
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| 摘 要： | 研究在苯－乙醇体系中制备的有代表性羧甲基纤维素（ＣＭＣ）样品的水溶液粘性行为及取代度、分子量对粘度的影响，重点讨论了取代基沿分子链的分布及在Ｃ２、Ｃ３、Ｃ６位上的分布对粘度性质的影响．还考察了羧甲基纤维素样品的抗酸性、抗碱性及抗盐性，为ＣＭＣ的应用提供了理论依据．
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| 关 键 词： | 粘度，取代基分布，取代度，耐盐性 |
VISCOSITY BEHAVIOR OF AQUEOUS SOLUTION OF CMC PRODUCED IN TWO PHASE MEDIUM C 6H 6 C 2H 5OH |
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| Abstract: | This study is focused on the viscosity behavior of the aqueous solution of the CMC prepared in a two phase medium C 6H 6 C 2H 5OH H 2O.The effects of properties such as the degree of substitution,molecular weight,distribution of substituent along the molecular chain or at positions C 2,C 3 and C 6 on viscosity are investigated respectively.The difference of the CMC synthesized in medium benzene ethanol and ethanol is studied.The addition of benzene is beneficial to improve the viscosity and stability of CMC solutions.The CMC with homogeneous distribution of substituent along the chain and the high substitution at position C 6 possess a good compatibility with organic acids and excellent resistance to alkali,salts and acid. |
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| Keywords: | viscosity distribution of substituent degree of substitution salt resistance |
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