Chem. J. Chinese Universities ›› 2011, Vol. 32 ›› Issue (4): 879.

• Articles • Previous Articles     Next Articles

Interactions Between Polyamine-modified β-Cyclodextrins and Anionic Surfactants

SUN Huan-Quan1*, LIU Min2, CAO Xu-Long3, CUI Xiao-Hong3, SHI Jing3, GUO XIAO-Xuan2, CHEN Yong2, LIU Yu2*   

  1. 1. Shengli Oilfield Company, SINOPEC, Dongying  257000, China;
    2. State Key Laboratory of Elemento-Organic Chemistry, Department of Chemistry, Nankai University, Tianjin 300071, China;
    3. Geological Scientific Research Institute of Shengli Oilfield Company, SINOPEC, Dongying  257015, China
  • Received:2010-06-01 Revised:2010-07-15 Online:2011-04-10 Published:2011-03-09
  • Contact: SUN Huan-Quan,LIU Yu E-mail:shq@slof.com;yuliu@nankai.edu.cn
  • Supported by:

    国家自然科学基金(批准号: 20932004)和国家重大专项(批准号:   2008ZX05011)资助.

Abstract: The binding constants between several polyamine-modified β-cyclodextrins, i.e. mono(6-amino-6-deoxy)-β-CD(NH2-β-CD), mono[6-(ethylenediamino)-6-deoxy]-β-yclodextrin(EN-β-CD), mono[6-(diethylenetriamino)-6-deoxy]-β-cyclodextrin(DETA-β-CD), mono[6-(triethylenetetraamino)- 6-deoxy]-β-cyclodextrin (TETA-β-CD) and three anionic surfactants (CnH2n+1SO3Na, n=8, 10, 12) in phosphate buffer solution (25?C, pH 7.2) and carbonic acid buffer solution (25?C, pH 10.5) were measured by the method of UV-Vis and fluorescence spectroscopy titration, in which all the hosts and guests formed 1:1 inclusion complexes. The obtained results show that the binding constants between polyamine-modified β-cyclodextrins and anion surfactants are in the region of 2.6?102 ? 4.35?104 M-1 in neutral condition, whereas in basic condition the binding would become weaker. In both of two pH conditions, the binding ability became much stronger with increasing the carbon number of anionic surfactants.

Key words: cyclodextrin, spectroscopy titration;anionic surfactant;supermolecular chemistry

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