RADIATION-SENSITIVE COMPOSITIONS AND IMAGEABLE MATERIALS

摘要

A negative-working radiation-sensitive composition includes a polymeric binder comprising a polymer backbone and having attached thereto a carbazole derivative represented by the following Structure (I) wherein Y is a direct bond or a linking group, and R¹ to R⁸ are independently hydrogen, or an alkyl, alkenyl, aryl, halo, cyano, alkoxy, acyl, acyloxy, or carboxylate groups, or any adjacent R¹ through R⁸ groups can together form a carbocyclic or heterocyclic group or a fused aromatic ring. The composition can be sensitive to radiation having a maximum wavelength of from 150 to 1500 nm, and can be used to prepare negative-working imageable elements that be imaged and developed as lithographic printing plates.