Polymer compound and light-emitting element using same

Patent metadata

Field	Value
Publication number	US-10654967-B2
Application number	US-201615752272-A
Country	US
Kind code	B2
Filing date	Sep 14, 2016
Priority date	Sep 18, 2015
Publication date	May 19, 2020
Grant date	May 19, 2020

Abstract

A polymer compound having a constitutional unit represented by formula (1A) or formula (1B) and a constitutional unit represented by formula (2A) or formula (2B) is provided, wherein each of X M and X N is a crosslinkable group; and R Am , R Bm , Ar 1m to Ar 5m , L M , Ar M , m1 to m6, R An , R Bn , Ar 1n to Ar 5n , Ar Ln , L N , Ar N , n1 to n6, and Ln are as defined in the specification. The polymer compound is excellent in crosslinkability and hole transportability.

First claim

The invention claimed is:

1. A polymer compound comprising a constitutional unit represented by the formula (1A) and a constitutional unit represented by the formula (2A):

wherein
R Am and R Bm each independently represent a hydrogen atom, an alkyl group, a cycloalkyl group, an aryl group or a monovalent heterocyclic group, and these groups each optionally have a substituent, and when a plurality of R Bm are present, they may be the same or different,
Ar 1m and Ar 2m each independently represent an arylene group or a divalent heterocyclic group, and these groups each optionally have a substituent, and A 1m and R Am may be combined together to form a ring together with the nitrogen atom to which they are attached, and Ar 2m and R Bm may be combined together to form a ring together with the nitrogen atom to which they are attached,
Ar M represents an aromatic hydrocarbon group or a heterocyclic group, and these groups each optionally have a substituent, and when a plurality of Ar M are present, they may be the same or different,
m1, and m3 each independently represent an integer of 1 to 4,
m2 represents an integer of 0 to 5,
when a plurality of m2 and m3 are present, they may be the same or different at each occurrence,
L M represents an alkylene group, a cycloalkylene group, an arylene group, a divalent heterocyclic group, a group represented by —N(R′)—, an oxygen atom or a sulfur atom, and these groups each optionally have a substituent, and R′ represents a hydrogen atom, an alkyl group, a cycloalkyl group, an aryl group or a monovalent heterocyclic group, and these groups each optionally have a substituent, and when a plurality of L M are present, they may be the same or different, and
X M represents a monovalent group containing a crosslinkable group represented by the formula (XL-9), the formula (XL-10), the formula (XL-11), the formula (XL-12), the formula (XL-13) or the formula (XL-16), and these groups each optionally have a substituent, and when a plurality of X M are present, they may be the same or different:

wherein * represents a binding site;
and
R An and R Bn each independently represent a hydrogen atom, an alkyl group, a cycloalkyl group, an aryl group or a monovalent heterocyclic group, and these groups each optionally have a substituent, and when a plurality of R Bn are present, they may be the same or different,
Ar 1n , Ar 2n and Ar Ln each independently represent an arylene group or a divalent heterocyclic group, and these groups each optionally have a substituent, and Ar 1n and R An may be combined together to form a ring together with the nitrogen atom to which they are attached, Ar 2n and R Bn may be combined together to form a ring together with the nitrogen atom to which they are attached, and when a plurality Ar Ln is present, they may be the same or different at each occurrence,
Ar N represents an aromatic hydrocarbon group or a heterocyclic group, and these groups each optionally have a substituent, and when a plurality of Ar N are present, they may be the same or different,
n1 and n3 each independently represent an integer of 1 to 4,
n2 represents 1 or 2,
Ln represents an integer of 0 to 4,
L N represents an alkylene group, a cycloalkylene group, a divalent heterocyclic group, a group represented by —N(R′)—, an oxygen atom or a sulfur atom, and these groups each optionally have a substituent, and R′ represents the same meaning as described above, and when a plurality of L N are present, they may be the same or different, and
X N represents a monovalent group containing a crosslinkable group represented by the formula (XL-1), the formula (XL-2), the formula (XL-3), the formula (XL-4), the formula (XL-5), the formula (XL-6), the formula (XL-7), the formula (XL-8), the formula (XL-14) or the formula (XL-15), and these groups each optionally have a substituent, and when a plurality of X N are present, they may be the same or different:

wherein
n XL represents an integer of 0 to 5, and when a plurality of n XL are present, they may be the same or different,
R XL represents a methylene group, an oxygen atom or a sulfur atom, and when a plurality of R XL are present, they may be the same or different, and
* represents the same meaning as described above.

2. The polymer compound according to claim 1 , wherein X M is a monovalent group containing a crosslinkable group represented by the formula (XL-16) optionally having a substituent.

3. The polymer compound according to claim 1 , wherein -(L M ) m2 -X M is a group represented by the formula (A):

wherein
the ring R 1A and the ring R 2A each independently represent an aromatic hydrocarbon ring or a heterocyclic ring and these rings each optionally have a substituent,
nA represents an integer of 0 to 3,
L A represents an alkylene group, a cycloalkylene group, an arylene group, a divalent heterocyclic group, a group represented by —N(R″)—, an oxygen atom or a sulfur atom and these groups each optionally have a substituent, and R″ represents a hydrogen atom, an alkyl group, a cycloalkyl group, an aryl group or a monovalent heterocyclic group and these groups each optionally have a substituent, and when a plurality of L A are present, they may be the same or different, and
Q 1 represents a crosslinkable group represented by the formula (XL-16) optionally having a substituent.

4. The polymer compound according to claim 1 , wherein X N is a monovalent group containing a crosslinkable group represented by the formula (XL-1) optionally having a substituent.

5. The polymer compound according to claim 1 , further comprising a constitutional unit represented by the formula (X):

wherein
a 1 and a 2 each independently represent an integer of 0 or more,
Ar X1 and Ar X3 each independently represent an arylene group or a divalent heterocyclic group and these groups each optionally have a substituent,
Ar X2 and Ar X4 each independently represent an arylene group, a divalent heterocyclic group or a divalent group in which at least one arylene group and at least one divalent heterocyclic group are bonded directly to each other, and these groups each optionally have a substituent, and when a plurality of Ar X2 and Ar X4 are present, they may be the same or different at each occurrence, and
R X1 , R X2 and R X3 each independently represent a hydrogen atom, an alkyl group, a cycloalkyl group, an aryl group or a monovalent heterocyclic group, and these groups each optionally have a substituent, and when a plurality of R X2 and R X3 are present, they may be the same or different at each occurrence.

6. The polymer compound according to claim 1 , further comprising a constitutional unit represented by the formula (Y):

wherein Ar Y1 represents an arylene group, a divalent heterocyclic group or a divalent group in which at least one arylene group and at least one divalent heterocyclic group are bonded directly to each other, and these groups each optionally have a substituent.

7. The polymer compound according to claim 6 , wherein the constitutional unit represented by the formula (Y) is a

Assignees

• Sumitomo Chemical Co

Inventors

• Shiratori Mio
• Sakakibara Ken
• Fukushima Daisuke
• Yoshida Tomoyasu

Classifications

• C09K2211/1033

  with oxygen · CPC title

• C09K2211/1007

  Non-condensed systems · CPC title

• C08G2261/3245

  containing nitrogen and oxygen as heteroatoms · CPC title

• C08G2261/312

  Non-condensed aromatic systems, e.g. benzene · CPC title

• C08G2261/1412

  Saturated aliphatic units · CPC title