화학공학소재연구정보센터
Journal of the Korean Industrial and Engineering Chemistry, Vol.8, No.6, 881-885, December, 1997
N-Dodecanoyl, N-Methyl Glucamine (GL-12)과 음이온 계면활성제 혼합물의 가용화력에 관한 연구
Studies on the Solubilizing Capacity of GL-12 and Anionic Surfactant Mixtures
초록
본 연구에서는 유용성 염료인 sudan Ⅲ를 이용하여 비이온 계면활성제인 GL-12와 범용 음이온 계면활성제인 linear laurylbenzene sulfonate(LAS) 또는 sodium polyoxyethylene(3) glycol lauryl ether sulfate (SLES) 혼합 용액의 가용화력에 대하여 조사하였다. 두 계면활성제 혼합계 (GL-12/LAS, GL-12/SLES)의 가용화력은 각각 계면활성제 혼합비에 크게 영향을 받았으며 GL-12의 함량이 증가할수록 가용화력도 증가 하였다. 용액의 가용화력에 NaCl이 미치는 영향으로부터 GL-12/LAS계에서는 solubilizate인 sudan Ⅲ가 가용화 후 미셀내 palisade 층 근처에 위치하고 GL-12/SLES 혼합게에서는 solubilizate가 미셀의 core부근에 위치함을 알 수 있었고 이는 LAS와 SLES의 분자구조 차이에 기인한다.
The solubilizing capacity of GL-12, LAS, SLES aqueous solutions and that of mixed surfactant systems were studied using sudan Ⅲ, which is oil-siluble dye. The solubilizing capacity of mixed surfactant systems was greatly influenced by the mixing ratios. Generally, the solubilizing capacity increased as the composition of GL-12 in the mixed systems increased. From the effect of NaCl on the solubilizing capacity, it was found that the solubilizate is located near the palisade layer in the GL-12/LAS system, and the solubilizate is located inside the micellar core in the GL-12/SLES mixed system. These differences in the location of slubilizate inside micelles result from the difference of molecular structure between LAS and SLES.
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