Method of forming a polymer comprising a conjugated backbone

Patent metadata

Field	Value
Publication number	US-9951175-B2
Application number	US-201515129646-A
Country	US
Kind code	B2
Filing date	Mar 26, 2015
Priority date	Mar 27, 2014
Publication date	Apr 24, 2018
Grant date	Apr 24, 2018

Abstract

A method of forming a polymer comprising a conjugated backbone and side-groups pendant from the conjugated backbone wherein the method comprises the steps of: polymerizing one or more monomers to form a precursor polymer comprising the conjugated backbone and precursor groups pendant from the conjugated backbone, and subsequently converting the precursor groups to the side-groups.

First claim

The invention claimed is:

1. A method of forming a polymer comprising a conjugated backbone and side-groups pendant from the conjugated backbone wherein the method comprises the steps of:
polymerising one or more monomers to form a precursor polymer comprising the conjugated backbone and precursor groups pendant from the conjugated backbone, and
converting the precursor groups to the side-groups;
wherein the backbone comprises fluorene repeat units.

2. A method of forming a polymer comprising a conjugated backbone and side-groups pendant from the conjugated backbone wherein the method comprises the steps of:
polymerising one or more monomers to form a precursor polymer comprising the conjugated backbone and precursor groups pendant from the conjugated backbone, and
converting the precursor groups to the side-groups;
wherein the side group is a group of formula —(OR) n —R 4 ; wherein R in each occurrence is a C 1-10 alkyl group; wherein one or more non-adjacent C atoms may be replaced with O; R 4 is H or OH, and n is at least 1.

3. A method of forming a polymer comprising a conjugated backbone and side-groups pendant from the conjugated backbone wherein the method comprises the steps of:
polymerising one or more monomers to form a precursor polymer comprising the conjugated backbone and precursor groups pendant from the conjugated backbone, and
converting the precursor groups to the side-groups;
wherein the side-group is an oligomer.

4. A method of forming a polymer comprising a conjugated backbone and side-groups pendant from the conjugated backbone wherein the method comprises the steps of:
polymerising one or more monomers to form a precursor polymer comprising the conjugated backbone and precursor groups pendant from the conjugated backbone, and
converting the precursor groups to the side-groups;
wherein the precursor group is a group of formula —O-PROT, wherein PROT is a protecting group.

5. The method according to claim 2 , wherein the backbone comprises arylene or heteroarylene repeat units.

6. The method according to claim 5 , wherein the backbone comprises fluorene repeat units.

7. The method according to claim 1 , wherein the side group is a group of formula —(OR) n —R 4 ; wherein R in each occurrence is a C 1-10 alkyl group; wherein one or more non-adjacent C atoms may be replaced with O; R 4 is H or OH, and n is at least 1.

8. The method according to claim 1 , wherein the side-group is an oligomer.

9. The method according to claim 1 , wherein the precursor group is a group of formula —O-PROT wherein PROT is a protecting group.

10. The method according to claim 9 , wherein PROT is a silyl group.

11. The method according to claim 1 , wherein the precursor polymer further comprises side-groups that do not change during conversion of the precursor groups.

12. The method according to claim 1 , wherein the polymerisation is a metal-catalysed polymerisation and the one or more monomers comprise a monomer of formula (I):
LG-RU 1 -LG  (I)

wherein RU 1 is a group comprising one or more aromatic or heteroaromatic groups; each LG is a leaving group bound to an aromatic carbon atom of RU 1 ; and RU 1 is substituted with one or more precursor groups.

13. The method according to claim 12 , wherein RU 1 is further substituted with one or more substituents that do not change during conversion of the precursor groups.

14. The method according to claim 12 , wherein the one or more monomers comprise a monomer of formula (II):
LG-RU 2 -LG  (II)

wherein RU 2 is a group comprising one or more aromatic or heteroaromatic groups; each LG is a leaving group bound to an aromatic carbon atom of RU 2 ; and RU 2 is unsubstituted or substituted with one or more substituents.

15. The method according to claim 12 , wherein LG in each occurrence is independently selected from boronic acid, boronic acid ester and halogen.

16. The method according to claim 15 , wherein the halogen is bromine or iodine.

Assignees

• Sumitomo Chemical Co

Inventors

• Pounds Thomas
• Humphries Martin
• Islam Nazrul

Classifications

• C09K2211/1475

  containing nitrogen and oxygen as heteroatoms · CPC title

• H01L51/5088

  Electricity · mapped topic

• C09K2211/185

  of the platinum group, i.e. Os, Ir, Pt, Ru, Rh or Pd · CPC title

• C08G2261/1424

  containing ether groups, including alkoxy · CPC title

• C08G2261/124

  alternating · CPC title