| Dynamic Behavior and Mass Transport in Polyacrylic Acid Gel by Dynamic Light Scattering |
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| 作者姓名： | JuZUO JianFengHUANG |
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| 作者单位： | [1]StateKeylaboratoryofFunctionalPolymerMaterialsforAdsorptionandSeparation [2]ChemistryDepartment,NankaiUniversity,Tianjin300071 |
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| 基金项目： | Project 29774011 was supported by the National Natural Science Foundation of China. |
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| 摘 要： | Dynamic behaviors on polyacrylic acid (PAA) gels and mass (small molecules) transports in the gels have been studied mainly by dynamic light scattering (DLS). The cross-linking degree (fc), monomer concentration (Cm) and temperature of the gels have significant influences on its dynamic behavior and mass transport in the gels. The increase of fc leads to decrease of the mesh sizes of the gels, thus the obstacle of the gels for mass thansport is increased. As a result, small molecular diffusion Dk in the gles is decreased.So even if for small molccules, the Dk also is influenced.
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| 关 键 词： | 动力学 质量输远 聚丙烯酸酯凝胶 动态光散射 |
Dynamic Behavior and Mass Transport in Polyacrylic Acid Gel by Dynamic Light Scattering |
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| Ju ZUO,Jian Feng HUANG,Ying Li AN,Fang Xing LI,Chang Ying ZHU,Li LIU,Zhi Guang ZHANG,Bing Lin HE.Dynamic Behavior and Mass Transport in Polyacrylic Acid Gel by Dynamic Light Scattering[J].Chinese Chemical Letters,2002,13(5):448-451. |
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| Authors: | Ju ZUO Jian Feng HUANG Ying Li AN Fang Xing LI Chang Ying ZHU Li LIU Zhi Guang ZHANG Bing Lin HE |
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| Abstract: | Dynamic behaviors on polyacrylic acid (PAA) gels and mass (small molecules) transports in the gels have been studied mainly by dynamic light scattering (DLS). The cross-linking degree (fc), monomer concentration (Cm) and temperature of the gels have significant influences on its dynamic behavior and mass transport in the gels. The increase of fc leads to decrease of the mesh sizes of the gels, thus the obstacle of the gels for mass transport is increased. As a result, small molecular diffusion Dk in the gels is decreased. So even if for small molecules, the Dk also is influenced. |
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| Keywords: | Polyacrylic acid gel dynamic light scattering mass transport diffusion |
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