초록 |
In this study, a new method is proposed for the synthesis of isosorbide-based sulfonate anionic surfactants with hexyl, octyl, decyl, and dodecyl side chains. Compared with the traditional synthesis routes, the new reactions are more efficient, simpler, highly selective, and provide higher yield and comparable purity. The two series of synthesis products are endo-5-O-alkyl isosorbide-2-O-propyl sulfonic acid sodium salt(ENISS-n) and exo-2-O-alkyl isosorbide-5-O-propyl sulfonic acid sodium salt(EXISS-n). Their critical micelle concentration (CMC) value, surface tension, foaming power, emulsifying capacity, and dispersion stability were measured. |