| N-异丙基丙烯酰胺凝胶在乙醇水溶液中的溶胀平衡 |
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| 引用本文： | 许小平. N-异丙基丙烯酰胺凝胶在乙醇水溶液中的溶胀平衡[J]. 中国化学工程学报, 2003, 11(3): 264-268 |
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| 作者姓名： | 许小平 |
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| 作者单位： | [1]DepartmentofChemicalEngineering,FuzhouUniversity,Fuzhou350002,China [2]LehrstuhlfuerTechnischeThermodynamik,UniversitaetKaiserslautern,Postfach3049,67663Kaiserslautern,Germany |
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| 基金项目： | Supported by the Science and Tchnology Ministry of Fujian(No.2001Z046)and the Education Commission of Fujian(No.K2001004). |
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| 摘 要： | N-isopropylacrylamide (NIPAAm) was used to synthesize NIPAAm homopolymer (nonionized) and NIPAAm-sodium methacrylate copolymer (ionized). The swelling equilibria for both gels were obtained in aqueous solution of ethanol with concentration ranging from 0 to 100%(by mass) at 25℃. The swollen gel in water shrank first with the addition of a small amount of ethanol and then reswelled with further addition of ethanol showing not only a discontinuous volume phase transition but also a typical reentrant phenomenon. A thermodynamic model based on the UNIQUAC with the “free-volume“ contribution was applied to correlate and predict the swelling behavior of the poly(NIPAAM)-gels in ethanol-water mixture.
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| 关 键 词： | 均衡膨胀 N－异丙基丙烯酰胺 水凝胶 乙醇水溶液 热力学 |
| 修稿时间： | |
The Swelling Equilibria of N-isopropylacrylamide Based Hydrogel in Aqueous Solution of Ethanol |
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| HUTHER Andreas,MAURER Gerd. The Swelling Equilibria of N-isopropylacrylamide Based Hydrogel in Aqueous Solution of Ethanol[J]. Chinese Journal of Chemical Engineering, 2003, 11(3): 264-268 |
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| Authors: | HUTHER Andreas MAURER Gerd |
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| Affiliation: | Department of Chemical Engineering, Fuzhou University, Fuzhou 350002, China Lehrstuhl fur Technische Thermodynamik, Universitat Kaiserslautern, Postfach 3049, 67663 Kaiserslautern, Germany |
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| Abstract: | N-isopropylacrylamide (NIPAAm) was used to synthesize NIPAAm homopolymer (nonionized) |
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| Keywords: | hydrogel swelling poly(N-isopropylacrylamide) model |
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