| 摘要 |
PURPOSE:To obtain the title cured material suitable as optical parts or bonding material, having excellent physical properties such as transparency, hardness, heat resistance and chemical resistance, by curing a curable compound of phosphazene base of a novel structure having a bond of P and a specific residue in the molecule. CONSTITUTION:The aimed cured material obtained by curing a novel curable compound having a repeating unit (preferably bonded in a ring state) shown by the formula [a, b and c are a>0, b>=0, C>=O and a+b+c=2; R is H or CH<3>; X<1> is polymerizable and curable group and X<2> is nonpolymerizable and incurable group] and >=3 (preferably 3-8) degree of polymerization. The novel curable compound is preferably cured by heating polymerization, photopolymerization or by irradiation with active energy rays. |
