| 摘要 |
There is disclosed a method of producing a copolymer by polymerizing at least two monomers having different reactivity as constitutional components, comprising carrying out a polymerization while adding a monomer component B having high reactivity, to a solution of a monomer component A having low reactivity dissolved in a non-aqueous solvent having a boiling point of 55° C. to 120° C., in the presence of a polymerization initiator. The method can give a copolymer high in solubility and suitable for the processing by the flush vacuum dry system, and the method is excellent from the standpoint of the production capacity and stable/safe production throughout the process.
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