Polymer
AssigneeSumitomo Chemical Company, Limited
InventorsRuth Pegington, Martina Pintani
Life of this patent
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Abstract
A polymer having a first repeat unit of formula (I) and a second repeat unit of formula (II): wherein: R1 is an ionic substituent and R2 is a substituent; R3 and R4 are each independently a non-ionic substituent; R5 independently in each occurrence is a substituent; and each p is independently 0, 1, 2 or 3. A layer of an organic electronic device, e.g. an electron-transporting or electron-injecting layer of an organic light-emitting device, may be formed by deposition of an ink containing the polymer dissolved in a solvent. A light-emitting marker for use in an assay may contain the polymer.
Claims20
A polymer comprising a first repeat unit of formula (I) and a second repeat unit of formula (II):
- wherein
- R1 is an ionic substituent and R2 is a substituent;
- R3 and R4 are each independently a non-ionic substituent;
- R5 independently in each occurrence is a substituent;
- and
- each p is independently 0, 1, 2 or 3.
A method of forming an organic electronic device comprising adjacent first and second organic layers wherein the second layer comprises a polymer comprising a first repeat unit of formula (I) and a second repeat unit of formula (II):
- wherein
- R1 is an ionic substituent and R2 is a substituent;
- R3 and R4 are each independently a non-ionic substituent;
- R5 independently in each occurrence is a substituent;
- and
- each p is independently 0, 1, 2 or 3,
- wherein formation of the second organic layer comprises deposition of an ink comprising the polymer dissolved in a solvent onto the first organic layer and evaporation of the solvent.
Dependencies are inferred from the claim text.