プロパンスルトン誘導体の合成とその界面化学的性質について (第4報) : ノニルフェノールおよびポリオキシエチレンノニルフェノールエーテル誘導体

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Surfactants (C9H19·C6H4·O· (CH2) 3·SO3Na, C9H19·C6H4· (OC2H4) n·O· (CH2) 3·SO3Na) having propane sulf onate group were prepared from nonylphenol and polyoxyethylene nonylphenol ethers (n =2.7, 6.0, 7.6, 11.2, 13.6, 15.4). Surface active properties in their aqueous so were examined f o rsurf ace tension, foaming-, penetrating-, emulsifying powers, hard water resistance, Krafft point and cloud point. In general, the propane sultone derivatives exhibited excellent solubility, foaming power and hard water resistance, but surface tension was inferior than polyoxyethylene nonylphenol ethers (n=7.6, 13.6) and dodecylbenzene sulfovate. The relationships between the surface active properties and the length of the ethylene oxide chain in the propane sultone derivatives were as follows : (1) Favorable foaming power, penetrating power and surface tension were exhibited by the propane sultone derivatives containing 0 to 6 moles of the ethylene oxide chain. (2) Superior emulsifying power was shown by the propane sultone derivatives containing 10 to 13 moles of the ethylene oxide chain. (3) All propane sultone derivatives having the ethylene oxide group showed excellent hard water resistance.