| 초록 |
The use of cationic surfactants is limited in various applications because of little irritation, although cationic surfactants have excellent properties such as low surface and interfacial tensions. Double tail type of cationic surfactant was synthesized and confirmed by FT-IR and 1H-NMR spectroscopy. Surface tensions were measured by surface tensiometer(Sigma 70). Surface tensions and interfacial tensions of the synthesized surfactants were below 30 mN/m and below 35mN/m, respectively. Their c.m.c. values were evaluated by surface tension method. The emulsifying properties of synthesized cationic surfactants and sodium dodecyl sulfate (SDS), tetradecyl trimethyl ammonium bromide (TTAB) was investigated. |
