| 摘要 |
PROBLEM TO BE SOLVED: To obtain a photosensitive material of a negative type with which a color image may be obtained by a simple dry processing and which has a high sensitivity by incorporating a polymerizable monomer having a nucleophilic group, an acid generative polymerizable monomer and material which is capable of developing color in the presence of an acid into a composition. SOLUTION: This composition contains the polymerizable monomer having the nucleophilic group, the acid generative polymerizable monomer and the material which is capable of developing color in the presence of the acid. The composition generates the acid at a degree of polymerization and develops color in correspondence to the generated acid accompanying the copolymerization of these monomers. The polymerizable monomer having the nucleophilic group is preferably expressed by formula I. The acid generative monomer is preferably expressed by formula II. In the formulas I and II, X denotes a bivalent linkage group; Nu denotes a group having a nucleophilic site (nucleophilic group) and n denotes 0 or 1. R1 to R6 respectively denote hydrogen atmosphere or substituents; E denotes a group having a electrophilic group and A denotes the group which generates the acid as a result of the copolymerization of the polymerizable monomer having the nucleophilic group and the acid generative polymerizable monomer expressed by the formula II and the reaction of this nucleophilic group with E. |
