Novel polymer, light-emitting device material and light-emitting device using the same
申请人:——
公开号:US20010012572A1
公开(公告)日:2001-08-09
Disclosed are a novel polymer comprising at least one partial structure represented by the following formula (I), (II) or (III), a light-emitting device material which is the polymer, and a light-emitting device using the material:
1
wherein Ar
1
represents a conjugate unsaturated group exclusive of a nitrogen-containing heterocyclic ring having 2 or more nitrogen atoms, m and n each represents a partial ratio by mol in the polymer and satisfies the condition that m+n=100 where n is a numerical value of 0 to less than 100, R
1
represents hydrogen atom or a substituent, provided that when Ar
1
is a substituted fluorene ring or an alkoxy-substituted benzene ring, n is not a value of 50, Ar
2
represents a conjugate unsaturated group exclusive of a conjugate unsaturated group comprising a benzene ring substituted at two or more positions by an alkyl group having 12 or more carbon atoms, an alkoxy group having 16 or more carbon atoms, an alkoxycarbonyl group having 12 or more carbon atoms or an acyloxy group having 12 or more carbon atoms, and a conjugate unsaturated group comprising a nitrogen-containing heterocyclic ring having a 2,6-pyridinediyl group and 2 or more nitrogen atoms, p and q each represents an arbitrary partial ratio by mol in the polymer but is not a numerical value of 0 or 100, R
2
represents hydrogen atom or a substituent, Ar
3
represents a heteroarylene group having 2 or more nitrogen atoms, Ar
4
represents a conjugate unsaturated group, and r and s each represents a molar percentage in the polymer and satisfies the condition that r+s=100 where s is a numerical value of 0 to less than 100, provided that when Ar
3
is a 2,2′-dipyridyl-4,4′-diyl group or a 2,5-pyrazinediyl group, s is not a value of 0 or 50.
本发明公开了一种新型聚合物,该聚合物至少包含一种由下式(I)、(II)或(III)表示的部分结构;一种使用该聚合物的发光器件材料;以及一种使用该材料的发光器件:
1
其中 Ar
1
代表共轭不饱和基团,不包括具有 2 个或 2 个以上氮原子的含氮杂环,m 和 n 分别代表聚合物中的部分摩尔比,并满足 m+n=100 的条件,其中 n 是 0 至小于 100 的数值,R
1
代表氢原子或取代基,但当 Ar
1
是取代的芴环或烷氧基取代的苯环时,n 的数值不为 50,Ar
2
代表共轭不饱和基团,不包括在两个或两个以上位置被具有 12 个或 12 个以上碳原子的烷基、具有 16 个或 16 个以上碳原子的烷氧基、具有 12 个或 12 个以上碳原子的烷氧羰基或具有 12 个或 12 个以上碳原子的酰氧基取代的苯环组成的共轭不饱和基团、和一个共轭不饱和基团,该共轭不饱和基团包含一个含氮杂环,该杂环具有一个 2,6-吡啶二基和 2 个或多个氮原子,p 和 q 分别代表聚合物中任意的部分摩尔比,但不是 0 或 100 的数值。
2
代表氢原子或取代基,Ar
3
代表具有 2 个或 2 个以上氮原子的杂芳基,Ar
4
代表共轭不饱和基团,r 和 s 分别代表聚合物中的摩尔百分比,并满足 r+s=100 的条件,其中 s 是 0 至小于 100 的数值,条件是当 Ar
3
是 2,2′-二吡啶-4,4′-二基或 2,5-吡嗪二基时,s 的数值不是 0 或 50。