物理化学学报 >> 2009, Vol. 25 >> Issue (09): 1775-1778.doi: 10.3866/PKU.WHXB20090830

研究论文 上一篇    下一篇

癸基硫酸钠和癸烷磺酸钠与阳离子聚电解质相互作用的差别

王晨, 严鹏, 肖进新   

  1. 北京大学化学与分子工程学院, 北京分子科学国家实验室, 北京 100871|北京氟乐邦表面活性剂技术研究所, 北京 100080
  • 收稿日期:2009-04-21 修回日期:2009-05-16 发布日期:2009-09-03
  • 通讯作者: 肖进新 E-mail:xiaojinxin@pku.edu.cn

Differences between Sodium Decylsulfate and Sodium Decanesulfonate when Interacting with Cationic Polyelectrolyte

WANG Chen, YAN Peng, XIAO Jin-Xin   

  1. Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China|Beijing FLUOBON Surfactant Institute, Beijing 100080, P. R. China
  • Received:2009-04-21 Revised:2009-05-16 Published:2009-09-03
  • Contact: XIAO Jin-Xin E-mail:xiaojinxin@pku.edu.cn

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摘要：

 通过表面张力及荧光探针方法, 研究了癸基硫酸钠和癸烷磺酸钠与阳离子聚电解质聚二甲基二烯丙基氯化铵(PDMDAAC)的相互作用. 结果表明, 虽然单一癸基硫酸钠和癸烷磺酸钠性质非常相似, 但它们与PDMDAAC的相互作用有明显差别, 癸基硫酸盐与PDMDAAC的相互作用明显强于癸烷磺酸盐. 通过量子化学计算结果对本文实验观测结果进行了解释.

关键词: 荧光探针, 癸基硫酸钠, 癸烷磺酸钠, 聚二甲基二烯丙基氯化铵

Abstract:

Interactions between the cationic polyelectrolyte polydimethyldiallylammonium chloride (PDMDAAC) and sodium decylsulfate as well as sodium decanesulfonate were investigated by surface tension and pyrene fluorescence spectroscopy techniques. We found that although many properties of sodium decylsulfate and sodium decanesulfonate are similar, there are striking differences in their interactions with PDMDAAC. Sodium decylsulfate interacts with PDMDAAC more strongly than sodium decanesulfonate does. The experimental results in this work were explained by the data of the quantumchemical calculation.

Key words: Fluorescence probe, Decylsulfate, Decanesulfonate, Polydimethyldiallylammonium chloride