[1] Peking Univ, Coll Chem & Mol Engn, Beijing Natl Lab Mol Sci, Beijing 100871, Peoples R China
来源:
CHINESE SCIENCE BULLETIN
|
2007年
/
52卷
/
19期
基金:
中国国家自然科学基金;
关键词:
gemini surfactant;
synthesis;
elongated micelles;
D O I:
10.1007/s11434-007-0398-3
中图分类号:
O [数理科学和化学];
P [天文学、地球科学];
Q [生物科学];
N [自然科学总论];
学科分类号:
07 ;
0710 ;
09 ;
摘要:
Cationic gemini surfactant dimethylene-1,2-bis(dodecyldiethylammonium bromide), referred to as C12C2C12(Et) was synthesized, and its surface property and aggregation behavior in aqueous solution were studied. The value of gamma at the critical micelle concentration (gamma (cmc)) is much smaller than that of the surfactant homologues with longer spacer. Spherical and elongated micelles were formed in the aqueous solution of this gemini surfactant, and the spherical micelles were absolutely dominant compared to the elongated micelles at our studied concentration quantitatively.