Methods for producing crosslinkable silyl group-containing polyoxyalkylene polymers

摘要

Embodiments of the invention provide for a method of producing a silylated polyoxyalkylene polymer having at least one crosslinkable silyl group and at least one hydroxyl group in each molecule. The method comprises providing a polyoxyalkylene polymer having at least one unsaturated group and at least one alcoholic hydroxyl group in each molecule, wherein the polyoxyalkylene polymer includes an impurity double metal cyanide complex mixed therein, and wherein the polyoxyalkylene polymer has not been treated with a metal-coordinating compound; and adding to the polyoxyalkylene polymer a compound having a hydrogen-silicon bond and a crosslinkable silyl group in each molecule and a hydrosilylation catalyst to thereby carry out a hydrosilylation reaction, wherein the hydrosilyation reaction is performed in an absence of a metal-coordinating compound.

主权项

1. A method of producing a hydrosilylated polyoxyalkylene polymer having at least one crosslinkable silyl group and at least one hydroxyl group in each molecule, the method comprising:
providing a polyoxyalkylene polymer having at least one unsaturated group and at least one alcoholic hydroxyl group in each molecule, wherein:
the polyoxyalkylene polymer includes an impurity double metal cyanide complex mixed therein, and the polyoxyalkylene polymer has not been treated with a metal-coordinating compound and has not been purified to significantly remove the impurity double metal cyanide complex, the impurity double metal cyanide complex including an organic complexing agent; and adding to the polyoxyalkylene polymer a compound having a hydrogen-silicon bond and a crosslinkable silyl group in each molecule so as to provide hydrosilylation reactants and a hydrosilylation catalyst to thereby carry out a hydrosilylation reaction, wherein:
the hydrosilyation reaction is performed in an absence of a metal-coordinating compound and without removing or treating the double metal cyanide complex present in the hydrosilylation reactants, and the hydrosilyation reaction has a hydrosilylation efficiency of at least about 70% as determined by 1H-NMR.