Acta Phys. -Chim. Sin. ›› 1998, Vol. 14 ›› Issue (04): 380-384.doi: 10.3866/PKU.WHXB19980419

• Note • Previous Articles    

The Fluorescence Studies of a Hydrophobically Modified Polyelectrolytes

Chen Shun-Qing, Yang Ya-Hong   

  1. Department of Chemistry,Huazhong University of Science and Technology,Wuhan 430074
  • Received:1997-07-10 Revised:1997-11-27 Published:1998-04-15
  • Contact: Yang Ya-Hong

Abstract:

Epichlorohydrin (ECH) and tetraethylenepentamine(TEPA) were copolymerized and the copolymers were modified hydrophobically using a pendant C18 hydrophobic group (HPTE).Hydrophobic interaction of modified polymer was investigated by fluorescence using pyrene as a probe. It reveals that hydrophobic microdomains are formed by aggregation of hydrophobic side chains. The water in hydrophobic microdomains is in a state of diffusion equilibrium under the hydrophobic interaction. Critical aggregate concentration (c*cac) of HPTE decreases with increasing content of the bound hydrophobic groups.

Key words: Polysoap, Fluorescent probe spectrum, Hydrophobic interaction, Hydophobic microdomain