摘要
Epichlorohydrin (ECH) and tetraethylenepentamine(TEPA) were copolymerized andthe copolymers were modified hydrophobically using a pendant C18 hydrophobic group (HPTE).Hydrophobic interaction of modified polymer was investigated by fluorescence using pyrene as aprobe. It reveals that hydrophobic microdomains are formed by aggregation of hydrophobic sidechains. The water in hydrophobic microdomains is in a state of diffusion equilibrium under thehydrophobic interaction. Critical aggregate concentration (ccac) of HPTE decreases with increas-ing content of the bound hydrophobic groups.
Epichlorohydrin (ECH) and tetraethylenepentamine(TEPA) were copolymerized andthe copolymers were modified hydrophobically using a pendant C18 hydrophobic group (HPTE).Hydrophobic interaction of modified polymer was investigated by fluorescence using pyrene as aprobe. It reveals that hydrophobic microdomains are formed by aggregation of hydrophobic sidechains. The water in hydrophobic microdomains is in a state of diffusion equilibrium under thehydrophobic interaction. Critical aggregate concentration (ccac) of HPTE decreases with increas-ing content of the bound hydrophobic groups.
出处
《物理化学学报》
SCIE
CAS
CSCD
北大核心
1998年第4期380-384,共5页
Acta Physico-Chimica Sinica
基金
国家自然科学基金
关键词
高分子
表面活性剂
聚皂
荧光探针光谱
HPTE
Polysoap, Fluorescent probe spectrum, Hydrophobic interaction, Hydophobic microdomain
