| 摘要 |
A photopolymerizable composition comprising: (I) a photopolymerizable oligomer represented by the following formula (1), <IMAGE> (1) +TR <IMAGE>roup, R2 and R3 are organic groups, X is oxygen or sulfur, n is a number of not smaller than 1, and m is a number of not smaller than 2, or a combination of the above photopolymerizable oligomer and other ethylenically unsaturated monomer which is copolymerizable therewith; and (II) a catalytic amount of a photo-initiator, as well as a transparent cured product thereof. The product obtained by curing the photopolymerizable composition exhibits excellent properties and, particularly, excellent surface precision.
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