Acta Phys. -Chim. Sin. ›› 2005, Vol. 21 ›› Issue (03): 234-238.doi: 10.3866/PKU.WHXB20050302

• ARTICLE • Previous Articles     Next Articles

Interaction of Cephanone with Triton X-100 Aggregates

ZHU Jun; QIAN Jun-Hong; GUO Rong   

  1. School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002
  • Received:2004-07-15 Revised:2004-09-15 Published:2005-03-15
  • Contact: GUO Rong

Abstract: The effects of cephanone on the surface activity and aggregation behavior of Triton X-100 molecule were studied by the methods of surface tension and fluorescence, respectively. The binding constant between cephanone and Triton X-100 micelles was determined by the method of steady state fluorescence. The location of cephanone in Triton X-100 micelles was investigated through nuclear magnetic spectroscopy (NMR). The results showed that the surface activity of Triton X-100 decreased with the increase of cephanone concentration. With the increase of Triton X-100 concentration, the binding constant between cephanone and Triton X-100 micelles decreased, but the distribution coefficient of cephanone between Triton X-100 micelles and water continuous phase kept being invariable. The results of 1H-NMR showed that cephanone was located around the polar group of Triton X-100 micelle.

Key words: Cephanone, Triton X-100, Surface activity, Aggregation number, Binding constant, Distribution coefficient