How to get rid of the Karstedt catalyst in the polymer?

I also have this problem!

There are two types of silicone I have ever seen: thick silicone, which is too fast, and is suitable for pure mixture with a large difference in polarity; fine silicone, too slow, is suitable for pure separation for mixtures with little difference in polarity.In addition, there is a simple way to remove the catalyst in the polymer: find a precipitant, the solvent and catalysts in the polymer can dissolve each other and the insoluble polymer.The polymer that has been precipitated does not contain catalysts

My brother does a catalyst, and they can add a little cyclonexane to make the catalyst settle down and filter.I haven't tried it, you can take a little bit to try