Blue light-emitting polymer containing 9, 10-diphenylanthracene moiety and electroluminescent device using the same

An organic electroluminescent polymer, having a main chain consisting of 9,10-diphenylanthracene and vinylene, represented by the following chemical formula 1:

• 14
• wherein,
• Ar1 and Ar3 are identical or different, and are selected from the group consisting of:
• a non-substituted, C1-C25 alkyl-substituted, or C1-C25 alkoxy-substituted arylene group of 6 to 30 carbon atoms;
• an arylene group of 10 to 24 atoms having fused aromatic ring;
• an arylene group of 6 to 30 carbon atoms, substituted with an alkyl amino group of 1 to 25 carbon atoms or with an aryl amino group of 6 to 30 carbon atoms;
• a carbazole derivative having an alkyl group of 1 to 25 carbon atoms or an aryl group of 6 to 30 carbon atoms;
• a fluorenylene group having, at position 9, an alkyl group of 1 to 25 carbon atoms, a polyalkoxide group of 1 to 25 carbon atoms, or an aryl group substituted with an alkyl or alkoxy group of 1 to 25 carbon atoms;
• a silylene group substituted with an alkyl group of 1 to 25 carbon atoms, an alkoxy group of 1 to 25 carbon atoms, or aryl group of 6 to 30 carbon atoms;
• and an arylene group of 6 to 30 carbon atoms having a silyl group substituted with an alkyl group of 1 to 25 carbon atoms, an alkoxy group of 1 to 25 carbon atoms or an aryl group of 6 to 30 carbon atoms;
• Ar2 and R are identical or different, and are selected from the group consisting of:
• a hydrogen atom;
• a non-substituted, C1-C25 alkyl-substituted, or C1-C25 alkoxy-substituted aryl group of 6 to 30 carbon atoms;
• an aryl group of 10 to 24 atoms having fused aromatic ring;
• an aryl group of 6 to 30 carbon atoms, substituted with an alkyl amino group of 1 to 25 carbon atoms or with an aryl amino group of 6 to 30 carbon atoms;
• a carbazole derivative having an alkyl group of 1 to 25 carbon atoms or an aryl group of 6 to 30 carbon atoms;
• a fluorenyl group having, at position 9, an alkyl group of 1 to 25 carbon atoms, a polyalkoxide group of 1 to 25 carbon atoms, or an aryl group substituted with an alkyl or alkoxy group of 1 to 25 carbon atoms;
• a silyl group substituted with an alkyl group of 1 to 25 carbon atoms, an alkoxy group of 1 to 25 carbon atoms, or aryl group of 6 to 30 carbon atoms;
• an aryl group of 6 to 30 carbon atoms having a silyl group substituted with an alkyl group of 1 to 25 carbon atoms, an alkoxy group of 1 to 25 carbon atoms or an aryl group of 6 to 30 carbon atoms;
• and a cyano or fluoro group;
• l is an integer of 1 to 100,000 and m is an integer of 0 to 50,000, with the proviso that l is not less than m;
• and
• n is an integer of 1 to 100,000.