一种制备聚醚改性硅氧烷的方法

Preparation method of polyether modified siloxane

Abstract

The invention discloses a synthesis of organosilicon surfactant (polyether modified siloxane), comprising a solvent-free reaction of terminal allyl polyoxyethylene ether (molecular weight: 456-500) with heptamethyl trisiloxane by using chloroplatinic acid (speier catalyst) as catalyst. The catalyst used in the invention has high reactive activity for catalyzing organosilicon, and active hydrogen has high conversion rate, the use of benzene organic solvent is prevented, so that the preparation process is nontoxic and no pollution. The prepared polyether modified siloxane is clear and transparent, and has good wetability and spreadability.
本发明公开了一种有机硅表面活性剂(聚醚改性硅氧烷)的合成方法,包括端烯丙基聚氧乙烯醚(分子量:456-500)和七甲基三硅氧烷在氯铂酸催化剂(speier催化剂)条件下的无溶剂反应。该发明中所使用的催化剂催化有机硅反应活性高,活性氢的转化率高,避免使用苯类有机溶剂,无毒无污染,制得的聚醚改性硅氧烷清澈透明,润湿性和铺展性很好。

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Patent Citations (1)

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