Tertiary amino modified organic silicon polyether copolymer, preparation method and applications thereof

The invention discloses a tertiary amino modified organic silicon polyether copolymer, a preparation method and applications thereof, and relates to the technical field of organic silicon polyether copolymers, wherein the structural formula of the tertiary amino modified organic silicon polyether copolymer is defined in the specification. The preparation method comprises the following steps: carrying out a hydrosilylation reaction on polydimethyl-methyl hydrogen siloxane, allyl polyether with an epoxy group at the tail end and allyl polyether with a hydroxyl group or an alkyl group at the tailend to generate an organic silicon polyether copolymer with an epoxy group at the tail end of a side chain; and carrying out a reaction on the organic silicon polyether copolymer with the epoxy groupat the tail end of the side chain and an amine compound, so that the epoxy group of the organic silicon polyether copolymer with the epoxy group at the tail end of the side chain is subjected to ringopening to obtain the tert