| Synthesis and Characterization of Poly（ N-Vinyl-2-Pyrrolidone／Itaconic Acid） Hydrogel |
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| 引用本文： | 郭锦棠,李伶,李雄勇,刘冰. Synthesis and Characterization of Poly（ N-Vinyl-2-Pyrrolidone／Itaconic Acid） Hydrogel[J]. 天津大学学报(英文版), 2004, 10(3): 176-178 |
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| 作者姓名： | 郭锦棠 李伶 李雄勇 刘冰 |
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| 作者单位： | SchoolofChemicalEngineeringandTechnology,TianjinUniversity,Tianjin300072,China |
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| 摘 要： | With N-vinyl-2-pyrrolidone (NVP) and itaconic acid ( IA ), poly ( N-vinyl-2-pyrrolidone/itaconic acid) [ P(NVP/IA) ] hydrogel was synthesized by free radical solution polymerization. The structure of this P(NVP/IA) was characterized by IR. Effects of concentration of itaconic acid, amount of cross-link agent,N, N‘-methylene-bis-acrylamide, reaction temperature, and time on properties of swelling ratio (SR) of the hydrogel were investigated. The results show that the best swelling property of the hydrogel is obtained at 50 ℃ and 1.5 h. pH sensitivity increases as the concentration of itaconic acid in the hydrogel system increases.Swelling ratio of the hydrogel decreases as the amount of cross-link agent increases.
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| 关 键 词： | N-乙烯基-2-吡咯烷酮 pH敏感度 衣康酸 水凝胶 环境敏感材料 |
Synthesis and Characterization of Poly(N-Vinyl-2-Pyrrolidone/Itaconic Acid) Hydrogel |
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| GUO Jin-tang,LI Ling,LI Xiong-yong,LIU Bing. Synthesis and Characterization of Poly(N-Vinyl-2-Pyrrolidone/Itaconic Acid) Hydrogel[J]. Transactions of Tianjin University, 2004, 10(3): 176-178 |
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| Authors: | GUO Jin-tang LI Ling LI Xiong-yong LIU Bing |
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| Abstract: | With N-vinyl-2-pyrrolidone (NVP) and itaconic acid(IA), poly(N-vinyl-2-pyrrolidone/itaconic acid)[P(NVP/IA)] hydrogel was synthesized by free radical solution polymerization. The structure of this P(NVP/IA) was characterized by IR. Effects of concentration of itaconic acid, amount of cross-link agent, N,N′-methylene-bis-acrylamide, reaction temperature, and time on properties of swelling ratio(SR) of the hydrogel were investigated.The results show that the best swelling property of the hydrogel is obtained at 50 ℃ and 1.5 h. pH sensitivity increases as the concentration of itaconic acid in the hydrogel system increases. Swelling ratio of the hydrogel decreases as the amount of cross-link agent increases. |
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| Keywords: | hydrogel itaconic acid N-vinyl-2-pyrrolidone(NVP) pH sensitivity |
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