| abstract |
The invention discloses a preparation method of a block copolymer containing perfluoro-2,2-dimethyl-1,3-dioxole. Thoroughly stir the initiator, chain transfer agent and solvent with proportioning content, then add perfluoro-2,2-dimethyl-1,3-dioxole and tetrafluoroethylene monomer , obtain active poly(perfluoro-2,2-dimethyl-1,3-dioxole-co-tetrafluoroethylene) through iodine transfer living radical polymerization reaction, and then add cobalt complex with porphyrin Combined vinyl monomers are polymerized to obtain block copolymers. The process of the method of the invention is simple, and the molecular weight of the block copolymer and the composition of the block copolymer are conveniently regulated. The block copolymer can prepare a polymer separation membrane that is not suitable for swelling by organic solvents and complexes porphyrin cobalt, and is used for the specific selective separation of organic gases and oxygen. |