Method for preparing siloxane potassium alcoholate

• Main Authors: FU TIANLIANG, SANG SHENGKAI, SONG CHAO, ZHANG TING, HU SHENGXIANG, YI GANG
• Format: Patent
• Language: Chinese; English
• Published: 22.08.2012
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

The invention relates to a method for preparing siloxane potassium alcoholate, which belongs to the field of organic polymerization. The method is characterized by comprising the following steps: preparing a water solution from potassium hydroxide after purification in a reaction bottle, then adding polysiloxane which is well metered, increasing the temperature under the conditions of continuously introducing dry nitrogen and stirring, then opening vacuum, maintaining negative-pressure dehydration, and finishing reaction when observing that no water beads are collected any more to obtain the glutinous siloxane potassium alcoholate. An organic solvent is not used, environmental pollution and operation risk are avoided, and the time required for removing the solvent by increasing the temperature after the end of the reaction can be simultaneously saved.