The present invention relates to a ω-[2-(polyalkyleneoxy)ethylthio]alkylalkoxysilane derivative and a preparation method thereof, more particularly to a ω-[2-(polyalkyleneoxy)ethylthio]alkylalkoxysilane derivative prepared by transforming a (ω-mercaptoalkyl)alkylalkoxysilane compound into a ω-(alkoxysilyl)alkylthiolate metal salt by treating it with a metallic base and performing dehalometallation at low reaction temperature using a poly(alkyleneoxy)alkyl ether halide or a poly(alkyleneoxy)bis(haloalkyl) ether to form a carbon-sulfur bond and a preparation method thereof. The novel compound of the present invention has not only a Si—OR bond but also contains a sulfur atom in the molecule, so that it can be used as monomer for synthesizing hydrophilic functional silicon polymers, source material of silicon-based surfactants and surface modifier of organic/inorganic materials. In addition, the preparation method of the compound is an economical one as the reaction can be performed at room temperature, the production yield is high and the reaction byproduct (metal halide) can be easily removed by filtration.
本发明涉及一种ω-[2-(聚烷氧基)乙
硫基]烷基烷氧
硅烷衍
生物及其制备方法,更特别地,涉及通过将(ω-巯基烷基)烷基烷氧
硅烷化合物转化为通过用
金属碱处理并在低反应温度下进行脱卤
金属化反应,使用聚(烷氧基)烷基醚卤化物或聚(烷氧基)双(卤烷基)醚形成碳
硫键的ω-(烷氧
硅基)烷基
硫酯
金属盐的制备方法。本发明的新化合物不仅具有Si—OR键,而且分子中还含有
硫原子,因此可用作合成亲
水性功能
硅聚合物的单体,
硅基表面活性剂的原料和有机/无机材料的表面改性剂。此外,该化合物的制备方法是经济的,因为反应可在室温下进行,产量高,反应副产物(
金属卤化物)可通过过滤轻松去除。