| ESR Studies on the Micellization Behaviors of a Series of Novel Asymmetric Gemini Surfactants |
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| 作者姓名： | 吴一天 王金本 |
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| 作者单位： | InstituteofChemistry,theChineseAcademyofSciences,Beijing100080,China |
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| 基金项目： | theNationalNatureScienceFoundationofChina (No.2 0 0 730 35 ) |
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| 摘 要： | ＩｎｔｒｏｄｕｃｔｉｏｎＩｎｒｅｃｅｎｔｙｅａｒｓ ,ｂｉｓ(ｑｕａｔｅｒｎａｒｙａｍｍｏｎｉｕｍ)ｓｕｒｆａｃ ｔａｎｔｓｏｒｇｅｍｉｎｉｓｕｒｆａｃｔａｎｔｓ ,ｉｎｗｈｉｃｈｔｗｏｃａｔｉｏｎｉｃｓｕｒｆａｃ ｔａｎｔｍｏｉｅｔｉｅｓａｒｅｃｏｎｎｅｃｔｅｄｗｉｔｈｔｈｅａｍｍｏｎｉｕｍｈｅａｄｇｒｏｕｐｂｙａｐｌｏｙｍｅｔｈｙｌｅｎｅｃｈａｉｎ ,ｎａｍｅｌｙ ,ａｓｐａｃｅｒｈａｖｅｂｅｃｏｍｅｏｆｉｎｔｅｒｅｓｔｄｕｅｔｏｔｈｅｉｒｅｘｃｅｐｔｉｏｎａｌｓｕｒｆａｃｅａｃｔｉｖｉｔｙａｎｄｒｅｍ…
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| 关 键 词： | ESR 胶束 性质 表面活性剂 |
ESR Studies on the Micellization Behaviors of a Series of Novel Asymmetric Gemini Surfactants |
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| WU,Yi Tian WANG,Jin Ben LIU,Ming Hua LIANG,Wen PingInstitute of Chemistry,the Chinese Academy of Sciences,Beijing ,China.ESR Studies on the Micellization Behaviors of a Series of Novel Asymmetric Gemini Surfactants[J].Chinese Journal of Chemistry,2002,20(6):550-553. |
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| Authors: | WU Yi Tian WANG Jin Ben LIU Ming Hua LIANG Wen PingInstitute of Chemistry the Chinese Academy of Sciences Beijing China |
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| Institution: | WU,Yi Tian WANG,Jin Ben LIU,Ming Hua LIANG,Wen PingInstitute of Chemistry,the Chinese Academy of Sciences,Beijing 100080,China |
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| Abstract: | The synthesis of a new series of asymmetric cationic gemini surfactant and the investigation of their micellization behaviors by electronic spin resonance (ESR) as well as the surface tension measurements were reported. 4‐Oxo‐2,2,6,6‐tetramethylpiperidine‐N‐oxyl (4‐oxo‐TEMPO) is used as the spin probe. The surfactants studied have the general formula CnH2n+1 N+ (CH3)2C6H12N+(CH3)2CmH2m+1]Br2?, referred to as dimeric n‐6‐m surfactants, in which n and m are the numbers of carbon atoms in the asymmetric side alkyl chains. From the experimental data, rotational correlation time τc, surface tension and critical micelle concentration (cmc) values, the physical properties of these new surfactants have preliminarily been e‐valuated. It is shown that this new series of asymmetric gemini surfactants has interesting micellization behaviors, and they are very different in aggregating tendency from their asymmetric analogues. |
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| Keywords: | gemini surfactants ESR micellization |
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