| abstract |
A copolymer having the following general structure is provided, wherein a, b and d are in a molar ratio of about 0.01 to about 0.90, and c is in a molar ratio of about 0.01 to about 0.90; A monomer unit, wherein the cyano group is not directly linked to the main chain of the copolymer; A2 represents a monomer unit comprising two or more hydrogen bonding sites; A3 represents a compound that increases solubility in an organic solvent a monomer unit; and A4 represents a monomer unit that increases solubility in an aqueous alkaline solution. Also provided is a near-infrared radiation-sensitive coating composition comprising the copolymer, a positive-type thermal lithographic printing plate comprising the near-infrared radiation-sensitive coating comprising the copolymer, a method for making the printing plate, Finally it concerns the method of printing using the printing plate. Formula I: |