| 摘要 |
<p>A composition for optical materials, characterized by comprising at least one compound represented by the following formula (1) [wherein R?1, R2, and R3¿ each independently represents a C¿1-10? hydrocarbon group or hydrogen; X?1, X2, and X3¿ each independently represents sulfur, selenium, or tellurium; and Y?1, Y2, and Y3¿ each independently represents -S¿a?-[(CH2)bS]cH (a is an integer of 0 to 2; b is an integer of 0 to 4; and c is an integer of 0 to 2)] and a compound capable of reacting with the compound of the formula (1). The composition, containing the compound of the formula (1), gives through polymerization a cured resin which has a high refractive index and is useful as various optical materials.</p> |
