US 2003/0143429 A1Published application

Copolymer, polymer composition and polymer light-emitting device

AssigneeSumitomo Chemical Company, Limited

InventorsTomoyuki Suzuki, Shuji Doi, Takanobu Noguchi, Akihiko Okada

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Abstract

A copolymer having a polystyrene reduced number average molecular weight of 103-108, and comprising repeating units represented by formulas (1), (2), and (3), 1 wherein, R1 and R2 independently show a hydrogen atom, alkyl group, etc.; R3 and R4 independently show alkyl group, etc.; and m and n independently show an integer of 0-3, 2 wherein, R5 and R6 independently show a hydrogen atom, alkyl group, etc.; either R5 or R6 is different from either R1 or R2; R7 and R8 independently show an alkyl group, etc.; and k and l are independently an integer of 0-3, —Ar1— (3) wherein, Ar1 shows an arylene group, etc. The copolymer has an excellent solubility in an organic solvent, and a high glass transition temperature in good balance, a polymer LED of high performance, such as low-voltage driving and high luminance, is provided.

A copolymer having a polystyrene reduced number average molecular weight of 103-108, and comprising a repeating unit represented by formula (1), one or more kinds of repeating units represented by formula (2), and one or more kinds of repeating units represented by formula (3),

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wherein, R1 and R2 each independently show a hydrogen atom, alkyl group, aryl group, or monovalent heterocyclic group;
R3 and R4 each independently show alkyl group, alkoxy group, alkylthio group, alkylsilyl group, alkylamino group, aryl group, aryloxy group, arylsilyl group, arylamino group, arylalkyl group, arylalkoxy group, arylalkyl silyl group, arylalkyl amino group, monovalent heterocyclic group, or cyano group;
m and n each independently show an integer of 0-3;
when n is two or more, a plurality of R3s may be the same or different;
when m is two or more, a plurality of R4 may be the same or different;
two or more of R1, R2, R3 and R4, may be mutually connected to form a ring;
and when R1, R2, R3, or R4 contains an alkyl chain, the alkyl chain may be interrupted by a group containing a hetero atom,
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wherein, R5 and R6 each independently show a hydrogen atom, alkyl group, aryl group, or a monovalent heterocyclic group;
either R5 or R6 is different from either R1 or R2;
R7 and R8 each independently show an alkyl group, alkoxy group, alkylthio group, alkylsilyl group, alkylamino group, aryl group, aryloxy group, arylsilyl group, arylamino group, arylalkyl group, arylalkoxy group, arylalkylsilyl group, arylalkylamino group, monovalent heterocyclic group, or cyano group;
k and l are each independently an integer of 0-3;
when k is two or more, a plurality of R7s are the same or different;
when l is two or more, a plurality of R8 is the same or different;
two or more of R5, R6, R7 and R8, may be connected mutually to form a ring;
and when R5, R6, R7, or R8 contains an alkyl chain, the alkyl chain may be interrupted by a group containing a hetero atom,
—Ar1—(3)
wherein, Ar1 shows an arylene group, divalent heterocyclic group, or divalent aromatic amine group.

16 more elements

Facts

Application

10/322,046Filed 18 Dec 2002

Priority

JP 2001-38583319 Dec 2001

Published

31 Jul 2003

Term ends

Not estimatedThe source records don’t support an estimate.

Classification18 codes

H10K 85/151
Organic polymers or oligomers: copolymers
C08G 61/02
Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule: macromolecular compounds…
C08L 65/00
Compositions of macromolecular compounds obtained by reactions forming a carbon-to-carbon link in
C09K 11/06
Luminescent materials, e.g. electroluminescent or chemiluminescent: containing organic luminescent materials

Abstract

Claims23