| abstract |
A method for polymerizing a polymeric compound (A1) having a structural unit (a0) derived from a compound represented by the following general formula (a0-1), wherein the polymeric compound (A1) is selected from the group consisting of cyclic ketone solvents, ester solvents, and lactone solvents A method for polymerizing a polymeric compound (A1), wherein the polymerization is carried out using a mixed solvent containing at least 10% by mass of a solvent. Wherein Ra 1 is a monovalent substituent having a polymerizable group, La 1 is an oxygen atom, a sulfur atom or a methylene group, R 1 is a linear or branched group having 2 to 20 carbon atoms which may have a substituent Chain hydrocarbon group or a cyclic hydrocarbon group which may have a hetero atom, and n is an integer of 0 to 5] [Chemical Formula 1] |