The Synthesis Of Humectant By Quaternization With Honey

This new synthesis method of humectants used honey and di-methyl-dodecyl amine as material to produce a quaternary surfactant. Epoxychloropropane was necessarily used, and the effects of routes and conditions of the reaction were both discussed.First we researched the reaction of epoxychloropropane with di-methyl-dodecyl amine, then with honey. The infections of solvent, temperature and material ratio were investigated by contrast experiments. When the molar ratio of amine and epoxychloropropane was 1:2.5, after 1 hour reaction at 80 ℃, the conversion ratio of amine exceeded 99%. But as the epoxy had mostly been hydroxy, the conversion ratio of final product to the quarternary ammonium was 90.1 % ~92.7%, and to amine was only about 64%.The second route epoxychloropropane reacted with honey first, then with di-methyl-dodecyl amine. It had been proved that when the temperature of the first step was 70 ℃, the molar ratio of the honey and epoxychloropropane was 2:1, and the catalyzer was NaOH, the epoxy had almost completely converted to hydroxy. So we didn't need to worry whether the excessive epoxychloropropane would cause any influence to the next step. And the appropriate temperature of the second step was found to be 110℃, the appropriate molar ratio of di-methyl-dodecyl amine and epoxychloropropane was 0.6-0.7:1, as to two different kinds of honey reacted at this condition, the chemical properties of both products approached the the sample best.Also we found that the interfacial tension, the capability of keeping water and the anlistatig property of the two kinds of honey's products were similar to the sample. And the astragali honey's final product was better than that of the acacia honey in all these properties.