物理化学学报 >> 1998, Vol. 14 >> Issue (04): 380-384.doi: 10.3866/PKU.WHXB19980419

研究简报 上一篇    

疏水改性聚电解质的荧光探针光谱

陈顺清, 杨亚红   

  1. 华中理工大学化学系，武汉 430074
  • 收稿日期:1997-07-10 修回日期:1997-11-27 发布日期:1998-04-15
  • 通讯作者: 杨亚红

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

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关键词: 聚皂, 荧光探针光谱, 疏水相互作用, 疏水微区

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