Conductive Block Copolymers

• US 20080169451A1
• Filed: 03/03/2006
• Published: 07/17/2008
• Est. Priority Date: 03/07/2005
• Status: Active Grant

• Current Assignee: Arkema Incorporated (Arkema)
• Original Assignee: Arkema Incorporated (Arkema)
• Inventors: Mc Andrew, Thomas P., Aubart, Mark A., Rodak, Nicholas J., Schmidt, Scott C., Silverman, Gary S., Mountz, David A.
• Granted Patent: US 8,541,541 B2
• Time in Patent Office: Days
• US Class Current: 252/500
• CPC Class Codes: C08F 2438/01 Atom Transfer Radical Polymerization [ATRP] or reverse ATRP
• CPC Class Codes: C08F 290/06 Polymers provided for in subclass C08G
• CPC Class Codes: C08F 293/005 using free radical "living" or "controlled" polymerisation, e.g. using a complexing agent
• CPC Class Codes: C08G 61/124 with a five-membered ring containing one nitrogen atom in the ring
• CPC Class Codes: C08G 61/126 with a five-membered ring containing one sulfur atom in the ring
• CPC Class Codes: C08G 73/0266 Polyanilines or derivatives thereof
• CPC Class Codes: C08L 2666/02 Organic macromolecular compounds, natural resins, waxes or and bituminous materials
• CPC Class Codes: C08L 2666/14 Macromolecular compounds according to C08L59/00 - C08L87/00; Derivatives thereof
• CPC Class Codes: C08L 33/10 Homopolymers or copolymers of methacrylic acid esters
• CPC Class Codes: C08L 65/00 Compositions of macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain C08L7/00 - C08L57/00, C08L61/00 take precedence; Compositions of derivatives of such polymers
• CPC Class Codes: C08L 79/02 Polyamines

Abstract

The invention relates to the synthesis of polythiophene (PAT) copolymers, and their use as conductive polymers in final applications. Specifically, copolymers of PAT with (meth)acrylates, or amides are useful as additives in blends of different polymer matrices in many commercial applications.

Claims

1. ) An electroconductive copolymer composition comprising repeating segments of A and B and optionally C, in which A is selected from substituted or unsubstituted polythiophene, polyaniline or polypyrrol, B comprises a methacrylic polymer, copolymer or terpolymer or one or more amides, and C is selected from ethylenically unsaturated copolymerizable monomers other than methylmethacrylate.

2. ) The electroconductive copolymer of claim 1 wherein said copolymer is a block copolymer, a random copolymer, a graft or other controlled architectures.

3. ) The electroconductive copolymer of claim 1 having a regioregular structure of the A segments, which are electroconductive.

4. ) A method of manufacturing an electroconductive copolymer as described in claim 1 comprising using controlled radical polymerization initiators and/or coupling of functionalized copolymers.

5. ) The method of claim 4 wherein the controlled radical polymerization initiator is an alkoxyamine.

6. ) An electroconductive polymer formulation comprising:

c) from 0.01 to 70 percent by weight of said electroconductive copolymer of claim 1; and

d) from 99.99 to 30 percent by weight of one or more polymers miscible with said electroconductive copolymer.

7. ) An article formed from the electroconductive polymer formulation of claim 6.

8. ) The article of claim 7 comprising an organic light emitting diode, a touch panel display, an electrostatic charge dissipation coating, and electromagnetic interference shielding coating, and electrical discharge underlayer for use in electron beam imaging, a conductive support for a substrate exposed to electron beam imaging, an acrylic display window, an electrostatic dissipating PA-11 or PA-12, an electroconductive polyvinylidene fluoride, a substrate for receiving electrostatic painting or electroplating, or a fiber or filament.

9. ) An article comprising the electroconductive copolymer composition of claim 1 comprising an organic light emitting diode, a touch panel display, an electrostatic charge dissipation coating, and electromagnetic interference shielding coating, and electrical discharge underlayer for use in electron beam imaging, a conductive support for a substrate exposed to electron beam imaging, an acrylic display window, an electrostatic dissipating PA-11 or PA-12, an electroconductive polyvinylidene fluoride, a substrate for receiving electrostatic painting or electroplating, or a fiber or filament.

10. ) A method for controlling the morphology of a polythiophene having at least one electroconductive segment and at least one non-conducting segment within a polymethyl methacrylate, fluoropolymers, polyamides and/or polyolefin formulations comprising attaching and/or tailoring the electronic steric and/or functional nature of a non-conducting segment.