| 摘要 |
<p>An encapsulating composition for electronic devices which comprises a polymeric material and a metal ion scavenger selected from calixarene or oxacalixarene derivatives represented by formula (II), wherein m' + m'' = 0 - 8; n = 0 - 8; m' » 1/2 (m' + m''); 3 « m' + m'' + n « 8; if n = 0, m' + m'' » 4; R3 is H, halogen, or hydrocarbyl, aryl, hydrocarbylaryl or a substituted derivative thereof, and R3 may be the same or different on each aryl group; R4 is hydrocarbyl, aryl, hydrocarbylaryl, hydrocarbyloxy, aryloxy, or hydrocarbylaryloxy, or a substituted derivative thereof; or a compound of formula (A), wherein R?5 and R6¿ which may be the same or different are H, or hydrocarbyl, aryl, hydrocarbylaryl, or a substituted derivative thereof; R15 is H or hydrocarbyl, aryl, hydrocarbylaryl or a substituted derivative thereof; the calixarene or oxacalixarene derivative being present as a compound per se or being bound into the polymer network of the polymeric material.</p> |
