MASS TRANSPORT IN SWOLLEN THERMORESPONSIVE HYDROGELS: THEORETICAL MODEL AND ELECTROANALYTICAL STUDIES

机译：花粉热敏性水的质量传输：理论模型和电分析研究

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Voltammetry and chronoamperometry at microelectrodes were used to study mass transport properties of thermoresponsive poly(N-isopropyl-acrylamide-co-acrylic acid), NIPA-AA, hydrogels. 1,1'-Ferrocenedime-thanol, Fc(MeOH)_2, and 2,2,6,6-tetramethyl-1-piperidinyloxy, TEMPO, were used as electroactive probe molecules. It was found that the diffusion coefficients of Fc(MeOH)_2 and TEMPO in NIPA-AA hydrogels in their swollen state are approximately 20% - 50% smaller than those in aqueous solutions, and that the diffusion coefficient of probe molecules in these gels is inversely proportional to the concentration of co-polymer in the hydrogels. The "obstruction effect" and "hydration effect" were used to explain this phenomenon and to develop a new model, and experimental results were compared with predictions of that model.

机译：微电极上的伏安法和计时电流法用于研究热响应性聚（N-异丙基丙烯酰胺-丙烯酸），NIPA-AA，水凝胶的传质性能。 1,1'-二茂铁基乙醇（Fc（MeOH）_2）和2,2,6,6-四甲基-1-哌啶基氧基TEMPO被用作电活性探针分子。已发现，处于膨胀状态的NIPA-AA水凝胶中Fc（MeOH）_2和TEMPO的扩散系数比水溶液中的扩散系数小20％-50％，并且探针分子在这些凝胶中的扩散系数为与水凝胶中共聚物的浓度成反比。用“阻塞效应”和“水化效应”来解释这种现象并建立新的模型，并将实验结果与该模型的预测结果进行比较。

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《International Symposium on Chemical and Biological Sensors and Analytical Methods II, 2001》|2001年|p.582-588|共7页
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Malgorzata Ciszkowska; Weimin Zhang;
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Department of Chemistry, Brooklyn College, CUNY Brooklyn, NY 11210-2889;

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正文语种 eng
中图分类自动化技术、计算机技术;
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1. Transport of Ions and Electrostatic Interactions in Thermoresponsive Poly(N-Isopropylacrylamide-co-acrylic acid) Hydrogels: Electroanalytical Studies [J] . ChengSong Ma, Weimin Zhang, Malgorzata Ciszkowska The journal of physical chemistry, B. Condensed matter, materials, surfaces, interfaces & biophysical . 2001,第42期

机译：热响应性聚（N-异丙基丙烯酰胺-丙烯酸）水凝胶中离子的迁移和静电相互作用：电分析研究
2. Transport of Ions and Electrostatic Interactions in Thermoresponsive Poly(N-Isopropylacrylamide-co-acrylic acid) Hydrogels: Electroanalytical Studies [J] . ChengSong Ma, Weimin Zhang, Malgorzata Ciszkowska The journal of physical chemistry, B. Condensed matter, materials, surfaces, interfaces & biophysical . 2001,第42期

机译：热响应性聚（N-异丙基丙烯酰胺-丙烯酸）水凝胶中离子的迁移和静电相互作用：电分析研究
3. Mass trasnsport in thermoresponsive poly(N-isopropylacrylamide-co-acrylic acid) hydrogels studied by electroanalyticaltechniques:swollen gels [J] . Weimin Zhang, ChengSong Ma, Malgorzata Ciszkowska The journal of physical chemistry, B. Condensed matter, materials, surfaces, interfaces & biophysical . 2001,第17期

机译：用电分析技术研究热响应性聚（N-异丙基丙烯酰胺-丙烯酸）水凝胶的质量传递：溶胀的凝胶
4. Mass Transport in Swollen Thermoresponsive Hydrogels:Theoretical Model and Electroanalytical Studies [C] . Malgorzata Ciszkowska, Weimin Zhang The Meeting of the Electrochemical Society . 2001

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机译：热响应聚（N-异丙基丙烯酰胺 - 共 - 丙烯酸）水凝胶中离子和静电相互作用的运输：电分析研究

MASS TRANSPORT IN SWOLLEN THERMORESPONSIVE HYDROGELS: THEORETICAL MODEL AND ELECTROANALYTICAL STUDIES

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