| abstract |
PROBLEM TO BE SOLVED: To provide excellent storage stability before irradiation with light for activation, and to rapidly conduct a polymerization reaction or a crosslinking reaction at room temperature after irradiation with light. And a photoreactive composition capable of obtaining a cured product exhibiting excellent physical properties. A polymer comprising isobutylene, A photoreactive composition comprising a polymer (A) having at least one functional group represented by the following general formula (1) in one molecule, and a hydrogen radical donor (B). (Wherein, X represents a hydrolyzable functional group, R represents a hydrocarbon group, and n represents an integer of 1 to 3) |