| abstract |
A resin including a copolymer having the structural unit 1 and / or the structural unit 2 and a structural unit having a polar group is provided. R 1 , R 2 , R 5 and R 6 represent a hydrogen atom or an alkyl group having 1 to 8 carbon atoms, R 3 and R 4 represent a hydrogen atom or an alkyl group having 1 to 18 carbon atoms, and A 1 Is a structure in which a saturated carbon chain having 3 to 7 carbon atoms or a part of carbon contained in the saturated carbon chain is substituted with a heteroatom, m and n represent 0 or 1, and X 1 and X 2 are Halide ion, hydroxide ion or anion of organic acid or inorganic acid. |