N-Acyl Amino Acids Surfactant(14) Kinetics for Micelle Formation of sodium N-Acyl Sarcosinate Solution

N-아실아미노산계 계면활성제(제14보) Soium N-Acyl Sarcosinate 미셀형성에 있어 동력학적 고찰

Surface tension as a function of concentration and temperature was measured for aquous solution of sodium N-acyl sarcosinate, $RCON(CH_{3})CH_{2}$ COONa, From the intersection points in the (${\gamma}-logC$) curves, the critical micelle concentration (cmc) was determined at 20, 30, 40, and $50^{\circ}C$. Structural effects on the cmc maximum and the minimum area per molecule at the aquous solution/air interface were discussed. The free energy, enthalpy, and entropy of micellization and adsorption of surfactant solution also were investigated. Numberous investigators have dealt with sodium N-acyl sarcosinates and their applications as wettings, flooding and reducing agents and as corrosion inhibitors.