| abstract |
precursor of lithographic printing plate, plate production method using the same and polymeric compound. a lithographic printing plate precursor includes: a support and an image recording layer, containing (a) a polymerization initiator, (b) a sensitizing dye and (c) a polymerizable compound, and the image recording layer or an undercoat layer that is optionally provided between the support and the image recording layer comprises (d), a polymeric compound comprising (a1) a repeating unit with a side chain having a structure represented by the following formula (a1-1) and (a2) a repeating unit having a side chain that has at least one structure of formula (a2-1), (a2-2), (a2-3), (a2-4), (a2-5) and (a2-6), as defined in this document. |