Abstract
Thymine base with long alkyl chain shows wonderful reactivity and perfect reversibility on photoreversible dimerize, splitting reaction by irradiating UV light at 280nm and 240nm. There are three points for this photoreversible recording system. 1). It causes upon the high photo-reactivity of thymine base in film state and in polymer matrix. 2). With long alkyl chain supply suitable ordered thymine bases in film and matrix. 3). Polymer matrix increases the stability of the reactant from outside influences to be in use as a recording materials.
