エチレンオキシドのp-ヒドロキシベンゼンスルホンアミドへの付加重合とその生成物の物理化学的性質

概要

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The reactions of ethylene oxide (EO) with p-hydroxybenzenesulfonamide (HBSA), benzenesulfonamide, and phenol were carried out in the presence of small amounts of NaOH as a catalyst in an autoclave at 80°C. In order to remove poly-EO and to reduce the width of molecular weight distribution of crude addition polymerisates of EO the gel filtration and countercurrent distribution extraction were perfomed and these separated samples were analyzed by thin layer chromatography, infrared spectroscopy and nuclear magnetic resonance. From the synthetic results described above and those of addition polymerisation products of EO to p-hydroxybenzamide (HBCA) published in our previous paper, authors noticed that HBSA reacted more easily with EO than HBCA, and so the addition reaction of EO to HBSA was accompanied by the formation of more minute quantity of poly-EO and unreacted amide than in the case of HBCA, resulting the longer EO chain length of etho-HBSA. From the physico-chemical studies on the aqueous solutions of the samples, it was recognized that the increase of specific gravity, wettability and the decrease of surface tension in the aqueous solutions of etho-HBSA were greater than those of etho-HBCA.
社団法人日本油化学会の論文