Conjugated polymers containing heterospiro atoms and their use as electroluminescence materials

US5859211A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Willi Kreuder · Mainz, DE
• Donald Lupo · Frankfurt am Main, DE
• Josef Salbeck · Kelkheim, DE
• Hermann Schenk · Hofheim, DE
• Thomas Stehlin · Kriftel, DE

Key dates

• Filing date: Apr 17, 1997
• Grant date: Jan 12, 1999
• Expiry date: Apr 17, 2017

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10K50/11
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A conjugated polymer comprising repeating units of the formula (I), ##STR1## where the symbols and indices have the following meanings: .PSI. is an element of the 4th main group of the Periodic Table with the exception of carbon; PA1 D, E, F, G are identical or different and are --CR.sup.1 R.sup.2 --, --O--, --S--, --NR.sup.3 -- or a chemical bond; PA1 U is --CR.sup.4 .dbd.CR.sup.5 -- or a chemical bond; PA1 V is as defined for U or is --CR.sup.1 R.sup.2 --, --O--, --S--, --NR.sup.3 --, --SiR.sup.1 R.sup.2 --, --SO.sub.2 --, --O--, --CO--; PA1 A are identical or different and are H, a C.sub.1 --C.sub.20 -hydrocarbon radical which can also contain heteroatoms; PA1 T is --O--, --S--, --NR.sup.3 --, --CR.sup.1 R.sup.2 --, --CH.dbd.N--, --CA.dbd.CA--, --CH.dbd.CA--, --CH.dbd.CF-- or --CF.dbd.CF--; PA1 K, Q are identical or different hydrocarbon radicals which can contain heteroatoms and have conjugated electron systems; PA1 M, L are H or a straight-chain or branched alkyl group having from 1 to 22 carbon atoms, Br, Cl, F, CN, NO.sub.2 or CF.sub.3 ; PA1 m, n are identical or different and are 0, 1, 2, 3 or 4; and wherein said polymer is suitable as an electroluminescence material.