A method for preparing a terpolymer of a ketone resin

Abstract

The application belongs to the technical field of engineering resin, and provides a preparation method of ternary polyketone resin, steps: S1, preparing chlorodiisopropyl phosphine; S2, preparing phosphine sulfonic acid ligand by using the chlorodiisopropyl phosphine obtained in S1; S3, preparing phosphine sulfonic acid-nickel palladium catalyst; S4, preparing ternary polyketone resin by using the phosphine sulfonic acid-nickel palladium catalyst obtained in S3. The phosphine sulfonic acid-nickel palladium catalyst is used for catalytic synthesis, the strong dipole interaction between the molecular chains of ethylene / CO units is reduced, so that the melting point of polyketone is reduced and the processability of polyketone is improved. The melting point of polyketone macromolecule is reduced to 220 DEG C, the processable window temperature of polyketone macromolecule is increased, the processing cost is reduced, and the raw material conversion rate is improved. The Pd-Ni bimetallic center is constructed, the high CO activation ability of Pd and the olefin polymerization characteristics of Ni are utilized to realize the synergistic effect, the copolymerization activity and the insertion rate of polar monomer are simultaneously improved, the side reaction is reduced, and the raw material conversion rate is improved.

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