| abstract |
A resin comprising a structural unit represented by the formula (aa): wherein T1 represents a C3-C34 sultone ring group optionally having a substituent, and X1 represents -O- or -N(Rc)-, Rc Represents a hydrogen atom or a C1-C6 alkyl group, and Z1 represents -X2- or -X3-X4-CO-X5-, wherein X2, X3 and X5 each independently represent a C1-C6 alkanediyl group, and X4 represents -O- or - N(Rd)-, and Rd represents a hydrogen atom or a C1-C6 alkyl group, and R1 represents a hydrogen atom, a halogen atom, or a C1-C6 alkyl group optionally having a halogen atom. |