Abstract
The initial UV curing reaction was characterized for UV cured films (varnish blended with UV cure type acrylate and oxidation cure type alkyd resin). The amount of UV cured polymer was estimated by weighing the remnant of solvent extraction. The ratio of acrylate to alkyd resin was determined with the on-line methylation pyrolysis GC-MS. Furthermore, UV cured films were observed with a transmission electron microscope (TEM). As a result, it was found that a part of the alkyd resin existed in an insoluble state into solvent after being UV cured.