α-アルキルα'-オキシエチルおよび-オキシプロピルグリセリルジエーテルの合成とそれらの界面活性

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概要

• 論文の詳細を見る

• The present paper deals with synthesis of the diethers with two hydroxy groups and their surface activities. <BR>Hydroxyethyl and hydroxypropyl chlorohydrin ethers were obtained by the addition of epichlorohydrin to ethylene glycol and propylene glycol in the presence of stannic chloride (yield 95 %).From these ethers and potassium alcoholates, the diethers with two hydroxy groups or α-alkyl α'-hydroxyethyl (propyl) glyceryl diethers (alkyl ; octyl, 2-ethylhexyl, decyl, dodecyl, tetradecyl, hexa-decyl and 2-hexyldecyl) were obtained, and their purities were confirmed by elementary analysis, IR analysis and OH values. <BR>The surface tensions of aquous solutions of these diethers were determined by the du Nouy'smethod and it was observed that the cmc of α-octyland α-decyl diethers are higher than those of monohydroxy ethers (hydroxypropoxyethyl) octyl and decyl ethers). And in the solutions of α-dodecyl and α-tetradecyl diethers, the cmc was observed which were not observed in the solutions of monohydroxy ethers with same alkyl groups. Then, dispersing power of carbon black in water, penetrating power into the fabric and emulsifying power for kerosine or rape seed oil and watersystems were examined for α-octyl and α-2-ethylhexyl diethers and hydroxyethoxyethyl octyl ether.α-Octyl diether hada little higher dispersing power, than the other two ethers however, this was much lower than that of commercial nonylphenyl ether with 10 moles of ethylene oxide. As for the penetrating power, there is little difference between di- and mono-hydroxy ethers. The emulsifying power of 2-ethylhexyl ether is much more excellent, especially for kerosine and water system, than that of monohydroxy ether.

• 日本油化学会の論文

著者

• 渡辺 昭一郎

  北里大学 衛生学部

• 斎藤 賢

  北里大学

• 篠島 敏子

  北里大学

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• α-アルキルα'-オキシエチルおよび-オキシプロピルグリセリルジエーテルの合成とそれらの界面活性
• 脂肪酸メチルのGLC分析のための新しいポリエステルカラム

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