The fluorescence studies of a hydrophobically modified polyelectrolytes

被引：9
|
作者：
Chen, SQ [1 ]
Yang, YJ [1 ]
机构：
[1] Huazhong Univ Sci & Technol, Dept Chem, Wuhan 430074, Peoples R China
来源：
ACTA PHYSICO-CHIMICA SINICA | 1998年 / 14卷 / 04期
关键词：
polysoap; fluorescent probe spectrum; hydrophobic interaction; hydrophobic microdomain;
D O I：
10.3866/PKU.WHXB19980419
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
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.
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页码：380 / 384
页数：5
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