Substituted poly(arylene vinylenes), method for producing the same, and their use in electroluminescent elements
申请人:——
公开号:US20020064680A1
公开(公告)日:2002-05-30
Poly(arylenevinylenes) comprising at least 20% of recurring units of the formula (I),
1
where the symbols and indices have the following meanings:
Aryl: is an aryl group having
4
to
14
carbon atoms;
R′: is a substituent which is either in the labeled phenylene position
5
or
6
and is CN, F, Cl, N(R
1
R
2
) or a straight-chain, branched or cyclic alkyl, alkoxy or thioalkoxy group having
1
to
20
carbon atoms, in which, in addition, one or more H atoms may be replaced by F;
R″: are identical or different and are CN, F, Cl or a straight-chain, branched or cyclic alkyl or alkoxy group having
1
to
20
carbon atoms, where one or more non-adjacent CH
2
groups may be replaced by —O—, —S—, —CO—, —COO—, —O—CO—, —NR
1
—, —(NR
2
R
3
)
+
—A
−
or —CONR
4
—, and where one or more H atoms may be replaced by F, or an aryl group having
4
to
14
carbon atoms, which may be substituted by one or more non-aromatic radicals R′;
R
1
, R
2
, R
3
, R
4
are identical or different and are H or an aliphatic or aromatic hydrocarbon radical having
1
to
20
carbon atoms;
A
−
: is a singly charged anion or an equivalent thereof; and
n: is
0, 1, 2, 3, 4
or
5,
are suitable as electroluminescent materials.
聚芳烃乙烯基化合物包含至少20%的重复单元,其化学式为(I),其中符号和指数具有以下含义:芳基:是具有4至14个碳原子的芳基基团;R':是一个取代基,它位于标记的苯基位置5或6,并且是CN,F,Cl,N(R1R2)或直链,支链或环状烷基,烷氧基或硫代烷氧基基团,具有1至20个碳原子,在其中,另外一个或多个H原子可以被F取代;R″:相同或不同,并且是CN,F,Cl或直链,支链或环状烷基或烷氧基基团,具有1至20个碳原子,其中一个或多个非相邻的CH2基团可以被—O—,—S—,—CO—,—COO—,—O—CO—,—NR1—,—(NR2R3)+—A−或—CONR4—取代,其中一个或多个H原子可以被F取代,或者是具有4至14个碳原子的芳基基团,它可以被一个或多个非芳香基团R'取代;R1,R2,R3,R4相同或不同,是H或具有1至20个碳原子的脂肪族或芳香族烃基;A−:是单价阴离子或其当量;n:为0,1,2,3,4或5,适用作电致发光材料。