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研究了四氟乙烯五聚体和烯丙醇钠在F_(113)溶剂中的反应,证明在-35℃到-45℃之间烯丙氧基“取代”了四氟乙烯五聚体烯丙位上的一个氟原子,确定了反应产物的结构为II。在烯丙醇溶剂中,回流温度下反应除得到化合物II外,还得到3-三氟甲基-3-五氟乙基-2,2-二氢全氟戊酸烯丙酯(V)。由四氟乙烯五聚体烯丙基醚,可以衍生出新的氟硅表面活性剂VII和IX,它们具有很好的防水、防油性能。
The reaction of tetrafluoroethylene pentamer and sodium allyl alcohol in F_ (113) solvent was studied and it was demonstrated that the allyloxy group “substituted” tetrafluoroethylene pentamer allyl at -35 ° C to -45 ° C One of the fluorine atoms in the position confirms that the structure of the reaction product is II. Reaction in allyl alcohol solvent at reflux temperature gives the allyl 3-trifluoromethyl-3-pentafluoroethyl-2,2-dihydroperfluoropentanoate (V) in addition to the compound II. From tetrafluoroethylene pentameric allyl ether, new fluorosilicone surfactants VII and IX can be derived which have good water and oil repellency properties.