| abstract |
The present invention provides a kind of preparation method of oil-soluble hyperdispersant, first synthesize poly(methacrylate-b-(styrene-co-p-chloromethylstyrene)) oil by reversible addition-fragmentation chain transfer polymerization Soluble block copolymer, and then through the nucleophilic substitution reaction with the methylene chloride in the polymer, the block copolymer grafted polyamine compound hyperdispersant is prepared; the copolymer backbone has excellent properties in various resins Compatibility, at the same time, polyamine compounds with affinity appear repeatedly in the polystyrene segment, and can be closely combined with the surface of inorganic or organic particles to play a good anchoring role; the polymerization method of the present invention can realize good polymerization of monomers control, the polymer structure is regular, and the grafting rate is adjustable. The prepared hyperdispersant can meet the dispersion requirements of ultrafine particles in organic systems, and has a good application prospect. |