I am trying to reduce the final residual monomer level for polycaprolactone polymers. I am looking for a chemical that will react with the cyclic ester caprolactone monomer but not the final polyester polymer. As they are both esters and have the same reactive site, is there a chemical that can be used to just react with the monomer and not effect the polymer?
Dear James Morgan, if you are thinking so just for the sake to get rid of the residual unreacted monomer, you can choose more simple and efficient way. Dialysis seems to be the more suited option. My Regards
I fear you answered your question yourself. Such a compound does not exist. But as desribed in the following patent
https://patents.google.com/patent/EP2799462A1/en
the catalyst can be deactivated after reaction. Phosphorus oxychloride, dibutylphosphate, diethyl phosphite or phosphonic acids are examples for suitable deactivators of many types of catalysts (all group III or group IV metal complexes, rare eath complexes).
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