The invention relates to non ionic fluorinated compounds having the formula R.sub.F C hd 2H.sub.4 S(R)H, wherein R designates a C.sub.2 H.sub.4 X unit with X=O or S, or a chain exclusively comprising several such units, and two consecutive units can be identical or different, and R.sub.F is a perfluorinated alkyl group exclusive of compounds having the formula: R.sub.F C.sub.2 H.sub.4 SC.sub.2 H.sub.4 OH, R.sub.F C.sub.2 H.sub.4 S(C.sub.2 H.sub.4 O).sub.2 H and R.sub.F (C.sub.2 H.sub.4 S).sub.2 H and the mixtures of such compounds, in particular, the mixtures of the above defined products differing from one another by the length of their perfluorinated chain, but having the hydrophilic portion of the molecule identical from one product to the other. To obtain them, a compound having the formula R.sub.F C.sub.2 H.sub.4 SH is reacted on an ethylene or polyethylene glycol monochlorohydrin; the alcohol function of the resulting product is also converted to thiol function and then the so obtained product is reacted on such a monochlorohydrin and the resulting alcohol function is again transformed to thiol function, and so on, up to obtaining the desired number of C.sub.2 H.sub.4 O and/or C.sub.2 H.sub.4 S groups. Application as non ionic surfactant agent.
本发明涉及非离子型
氟化合物,其
化学式为R.sub.F C hd 2H.sub.4 S(R)H,其中R代表一个C.sub.2 H.sub.4 X单元,其中X = O或S,或仅包含多个这样的单元的链,且两个连续的单元可以相同或不同,R.sub.F是一种
全氟烷基,不包括化合物的
化学式:R.sub.F C.sub.2 H.sub.4 SC.sub.2 H.sub.4 OH,R.sub.F C.sub.2 H.sub.4 S(C.sub.2 H.sub.4 O).sub.2 H和R.sub.F (C.sub.2 H.sub.4 S).sub.2 H以及这些化合物的混合物,特别是上述定义的不同长度的
全氟链的混合物,但它们的亲
水部分从一个产品到另一个产品相同。为了获得它们,将具有
化学式R.sub.F C.sub.2 H.sub.4 SH的化合物与
乙烯或聚
乙二醇单
氯水合物反应;所得产物的醇基也转化为
硫醇基,然后将所得产物再与这样的单
氯水合物反应,所得产物的醇基再次转化为
硫醇基,如此反复,直到获得所需数量的C.sub.2 H.sub.4 O和/或C.sub.2 H.sub.4 S基团。应用为非离子表面活性剂。