| 水溶性聚合物与十二烷基硫酸钠相互作用的1H NMR研究 |
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| 引用本文： | 冯杨,方晓雯,毛诗珍,赵濉,袁汉珍,俞稼镛,杜有如.水溶性聚合物与十二烷基硫酸钠相互作用的1H NMR研究[J].波谱学杂志,2004,21(1):49-55. |
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| 作者姓名： | 冯杨 方晓雯 毛诗珍 赵濉 袁汉珍 俞稼镛 杜有如 |
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| 作者单位： | 1.中国科学院武汉物理与数学研究所, 波谱与原子分子物理国家重点实验室, 湖北武汉 430071;
2.中国科学院感光化学研究所，北京 100101 |
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| 基金项目： | 国家重点基础研究发展计划(973计划)，国家自然科学基金 |
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| 摘 要： | 用1H NMR方法研究了分别在2 g/L聚乙烯吡咯烷酮(PVP)和2 g/L聚乙烯醇（PVA）存在下，一系列不同浓度的十二烷基硫酸钠(SDS)溶液. 二维NOESY实验表明，SDS在浓度为2.5 mmol/L时形成胶束，且PVP被增溶到胶束内部；当SDS浓度低于2.5 mmol/L时，PVP与SDS之间没有明显的相互作用. 自旋-自旋弛豫时间的测量结果支持这一结论. 实验中没有检测到PVA与SDS之间的相互作用.
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| 关 键 词： | 1H核磁共振 聚乙烯吡咯烷酮 聚乙烯醇 十二烷基硫酸钠 相互作用 |
| 收稿时间： | 2003-07-18 |
INTERACTIONS OF WATER-SOLUBLE POLYMERS WITH SODIUM DODECYL SULFATE IN AQUEOUS SOLUTION STUDIED BY 1H NMR |
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| Abstract.INTERACTIONS OF WATER-SOLUBLE POLYMERS WITH SODIUM DODECYL SULFATE IN AQUEOUS SOLUTION STUDIED BY 1H NMR[J].Chinese Journal of Magnetic Resonance,2004,21(1):49-55. |
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| Authors: | Abstract |
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| Institution: | 1.State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, The Chinese Academy of Sciences, Wuhan 430071, China;
2.Technical Institute of Physics and Chemistry, The Chinese Academy of Sciences, Beijing 100101, China |
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| Abstract: | Aqueous solutions of sodium dodecyl sulfate (SDS) at various concentrations in 2 g/L polyvinylpyrrolidone (PVP) and 2 g/L polyvinyl alcohol (PVA), respectively, were studied by ~1H NMR. Two-dimensional nuclear Overhauser enhancement spectroscopy (NOESY) experiments show that SDS starts to micellize at a concentration of 2.5 mmol/L, with PVP solubilized in the interior of the micelles. At SDS concentrations lower than 2.5 mmol/L, no significant interaction could be detected. Spin-spin relaxation measurements support this conclusion. The interaction between PVA and SDS was hardly detected. |
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| Keywords: | 1H NMR polyvinylpyrrolidone polyvinyl alcohol sodium dodecylsulfate interaction |
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