Mild experimental conditions were applied to the synthesis of furan-aliphatic photoreactive copolymers by bulk transesterification, which called upon potassium carbonate as the catalyst, reaction times of about 30h and temperatures ranging from 95 to 120°C. The ensuing copolymers contained 3–10% of furan photoreactive monomer units, which absorbed at 308nm, and had molecular weights of about 8000. They were semi-crystalline materials with glass transition temperatures of −51 to −62°C and were stable up to 225°C. The irradiation in the near-UV of concentrated solutions or thin films of these copolymers resulted in their cross-linking and suggested their possible use as photoresists, particularly in offset printing plates.