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US 12,628,546 B2Granted
Polymer and organic light-emitting diode using same
AssigneeLG Chem, Ltd.
InventorsJi Hoon Kim, Jaesoon Bae, Jaechol Lee, Juhwan Kim, Dongyoon Khim, Min Suk Jung
Life of this patent
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Abstract
The present specification relates to a polymer and an organic light emitting device using the same, wherein the polymer is represented by the following Chemical Formula 1: E1-[A]a—[B]b—[C]c-E2 [Chemical Formula 1] Wherein A, B, C, E1, E2, a, b and c are described herein.
Claims15
A polymer represented by Chemical Formula 1:
- E1-[A]a—[B]b—[C]c-E2 [Chemical Formula 1]
- in Chemical Formula 1,
- A is represented by Chemical Formula 2-1,
- B is represented by Chemical Formula 3,
- C is a substituted or unsubstituted arylene group;
- a substituted or unsubstituted divalent heterocyclic group;
- R37 to R39 are the same as or different from each other, and are each independently deuterium;
- a substituted or unsubstituted alkyl group;
- a substituted or unsubstituted aryl group;
- or a cross-linkable group,
- k4 is an integer from 0 to 4, k5 is an integer from 0 to 3, when k4 and k5 are each 2 or higher, each occurrence of R37 to R39 is the same as or different from each other, respectively, and
- * is a part that bonds to at least one of E1, A, B, C, or E2,
- E1 and E2 are the same as or different from each other, and are each independently hydrogen;
- deuterium;
- a substituted or unsubstituted alkyl group;
- a substituted or unsubstituted silyl group;
- a substituted or unsubstituted aryl group;
- a substituted or unsubstituted arylamine group;
- a substituted or unsubstituted siloxane group;
- a cross-linkable group;
- or a combination thereof,
- a, b, and c are each a mole fraction,
- a is a real number of 0<a≤1,
- b is a real number of 0<b<1,
- c is a real number of 0≤c<1, and
- a+b+c=1,
- in Chemical Formula 2-1,
- Ar2 and Ar3 are the same as or different from each other, and are each independently an aryl group unsubstituted or substituted with an alkyl group,
- Ar1 and Ar4 are the same as or different from each other, and are each independently an arylene group,
- R1 and R2 are each a F,
- R3 is a hexyl group,
- n3 is 2, and
- * is a part that bonds to at least one of E1, A, B, C, or E2,
- in Chemical Formula 3,
- m is an integer of 3 or 4,
- when m is 3, Z is CRa;
- SiRa;
- N;
- or a substituted or unsubstituted trivalent aryl group,
- when m is 4, Z is C;
- Si;
- or a substituted or unsubstituted tetravalent aryl group,
- Ra is hydrogen;
- a substituted or unsubstituted alkyl group;
- or a substituted or unsubstituted aryl group,
- Y is a direct bond;
- a substituted or unsubstituted alkylene group;
- or a substituted or unsubstituted arylene group,
- when Y is a direct bond;
- or a substituted or unsubstituted alkylene group, Z is a substituted or unsubstituted trivalent or tetravalent aryl group, and
- * is a part that bonds to at least one of E1, A, B, C, or E2.
48 more elements
A polymer comprising a unit represented by Chemical Formula 2-1 and an end group represented by Chemical Formula 5:
- in Chemical Formulae 2-1 and 5,
- Ar2 and Ar3 are the same as or different from each other, and are each independently an aryl group unsubstituted or substituted with an alkyl group,
- Ar1 and Ar4 are the same as or different from each other, and are each independently an arylene group,
- R1 and R2 are each a F,
- R3 is a hexyl group,
- n3 is 2,
- E is hydrogen;
- deuterium;
- a substituted or unsubstituted alkyl group;
- a substituted or unsubstituted silyl group;
- a substituted or unsubstituted aryl group;
- a substituted or unsubstituted arylamine group;
- a substituted or unsubstituted siloxane group;
- a cross-linkable group;
- or a combination thereof, and
- * is an attachment point in the polymer.
13 more elements
Dependencies are inferred from the claim text.