| abstract |
A polymer compound having a weight average molecular weight in the range of 1,000 to 500,000, and contains one or more repeating units represented by formula (1) and one or more repeating units represented by formula (2): n n n n n n n n n n n n R 1 represents a hydrogen atom or a methyl group; n Rf 1 represents a linear or branched alkyl group having 1 to 4 carbon atoms or a phenyl group, and has at least one fluorine atom or a trifluoromethyl group in Rf 1 ; n Z 1 represents a single bond, an arylene group having 6 to 12 carbon atoms or —C(═O)—O—R 2 —; n R 2 represents a linear, branched or cyclic alkylene group having 1 to 12 carbon atoms, an arylene group having 6 to 10 carbon atoms or an alkenylene group having 2 to 10 carbon atoms, and may have an ether group, a carbonyl group or an ester group in R 2 ; and n “a” is 0<a≤1.0, and n n n n n n n n n n n n n n n n “b” is 0<b<1.0. |