α,ω-ビス(アミドプロピルヒドロキシスルホベタイン)型両性界面活性剤の合成と性質〔英文〕

概要

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α, ω-Bis (amidopropylhydroxysulfobetaine) -type amphoteric surfactants* [(CH2) nCONHC3H6N+ (CH3) 2CH2CH· (OH) CH2SO3] 2, were synthesized by reactions of alkanedioic acids with N, N-dimethyl-1, 3-propanediamine, followed by quaternization of the resulting bisaminoamides with sodium 3-halo-2-hydroxypropanesulfonate prepared by reaction of 1-halo-2, 3-epoxypropane with sodium hydrogen sulfite. The quaternization of bisaminoamide was carried out in a mixture of isopropyl alcohol and water (7/3) in the presence of sodium carbonate. The properties of the α, ω-bisamidopropyl-hydroxysulfobetaines derived from hexadecanedioic and icosane dioic acid showed excellent dispersion power of lime soap.