Aryl-substituted poly (p-arylene-vinylenes), process for their preparation and their use in electroluminescence components
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United States of America Patent
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Oct 1, 2002
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N/A
app pub date -
Dec 16, 1997
filing date -
Dec 16, 1996
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Abstract
Poly(p-arylene-vinylenes) comprising repeating units of the formula (I), ##STR1## where the symbols and indices have the following meanings: Y.sup.1, Y.sup.2, Y.sup.3 : identical or different, CH, N; Aryl: an aryl group having from 4 to 14 carbon atoms; R', R': identical or different, each a straight-chain or branched or cyclic alkyl or alkoxy group having from 1 to 20 carbon atoms, where one or more non-adjacent CH.sub.2 groups may be replaced by --O--, --S--, --CO--, --COO--, --O--CO--, --NR.sup.1 --, --(NR.sup.2 R.sup.3).sup.+ --A.sup.-, or --CONR.sup.4 -- and one or more H atoms may be replaced by F, or else CN, F, Cl or an aryl group having from 4 to 14 carbon atoms which may be substituted by one or more nonaromatic radicals R'; R.sup.1, R.sup.2, R.sup.3, R.sup.4 : identical or different, aliphatic or aromatic hydrocarbon radicals having from 1 to 20 carbon atoms or else H; A.sup.- : a singly charged anion or its equivalent; m: 0, 1 or 2; n: 1, 2, 3, 4 or 5; are suitable as electroluminescence materials.
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