| abstract |
(57) [Problem] To provide a cationically polymerizable composition exhibiting high activity (rapidly polymerizable, rapid curable) by irradiation with active energy rays and / or heating. A polymerizable composition containing an alicyclic alkane (a) having an oxetanyl group and an epoxy group in the same molecule and a compound (b) for initiating cationic polymerization by irradiation with an active energy ray and / or heating is obtained. In addition, it was found that the polymer exhibited high activity in thermal cation ring-opening polymerization and that the polymer (cured product) had good physical properties. |