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