Polymer-inorganic particle composites

• US 6,881,490 B2
• Filed: 04/24/2003
• Issued: 04/19/2005
• Est. Priority Date: 01/26/2001
• Status: Expired due to Term

• Current Assignee: Nanogram Corporation (Teijin Limited)
• Original Assignee: Nanogram Corporation (Teijin Limited)
• Inventors: Kambe, Nobuyuki, Blum, Yigal Dov, Chaloner-Gill, Benjamin, Chiruvolu, Shivkumar, Kumar, Sujeet, MacQueen, David Brent
• Primary Examiner(s): PENG, KUO LIANG
• Application Number:
  US10/422,149
• Publication Number:
  US 20030207129A1
• Time in Patent Office: 726 Days
• Field of Search: 428/447, 428/457, 524/401, 524/588, 524/556, 524/557, 524/602
• US Class Current: 428/447
• CPC Class Codes: B32B 27/08 of synthetic resin
• CPC Class Codes: C08G 18/3897 containing heteroatoms other than oxygen, halogens, nitrogen, sulfur, phosphorus or silicon
• CPC Class Codes: C08G 83/001 Macromolecular compounds containing organic and inorganic sequences, e.g. organic polymers grafted onto silica
• CPC Class Codes: C08K 9/08 Ingredients agglomerated by treatment with a binding agent
• CPC Class Codes: G02B 1/005 made of photonic crystals or photonic band gap materials photonic band-gap structures or photonic lattices in integrated optics G02B6/1225; photonic band-gap structures or photonic lattices in optical fibres G02B6/02295
• CPC Class Codes: G02B 6/10 of the optical waveguide type G02B6/02, G02B6/24 take precedence; devices or arrangements for the control of light by electric, magnetic, electro-magnetic or acoustic means G02F1/00; transferring the modulation of modulated light G02F2/00; optical logic elements G02F3/00; optical analogue/digital converters G02F7/00
• CPC Class Codes: H10N 10/856 comprising organic compositions
• CPC Class Codes: Y10T 428/16 Two dimensionally sectional layer
• CPC Class Codes: Y10T 428/25 Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
• CPC Class Codes: Y10T 428/2913 Rod, strand, filament or fiber
• CPC Class Codes: Y10T 428/2962 Silane, silicone or siloxane in coating
• CPC Class Codes: Y10T 428/2991 Coated
• CPC Class Codes: Y10T 428/31663 As siloxane, silicone or silane
• CPC Class Codes: Y10T 428/31678 Of metal
• CPC Class Codes: Y10T 428/31681 Next to polyester, polyamide or polyimide [e.g., alkyd, glue, or nylon, etc.]
• CPC Class Codes: Y10T 428/31692 Next to addition polymer from unsaturated monomers
• CPC Class Codes: Y10T 428/31931 Polyene monomer-containing

Abstract

Inorganic particle/polymer composites are described that involve chemical bonding between the elements of the composite. In some embodiments, the composite composition includes a polymer having side groups chemically bonded to inorganic particles. Furthermore, the composite composition can include chemically bonded inorganic particles and ordered copolymers. Various electrical, optical and electro-optical devices can be formed from the composites.

Claims

1. A composite composition comprising chemically bonded inorganic particles and a blend of distinct polymers wherein the blend of distinct polymers comprises an ordered copolymer or a self-organizing physical polymer blend.

2. The composite composition of claim 1 wherein the blends of distinct polymers comprise ordered copolymers.

3. The composite composition of claim 2 wherein the ordered copolymers are block copolymers.

4. The composite composition of claim 3 wherein the block copolymers comprise polystyrene-block-poly(methyl methacrylate), polystyrene-block-polyacrylamide, polysiloxane-block-polyacrylate/polyacrylic acid, or mixtures thereof.

5. The composite composition of claim 2 wherein the ordered copolymers comprise graft copolymers, comb copolymers, star-block copolymers, dendrimers or mixtures thereof.

6. The composite composition of claim 1 wherein the blends of distinct polymers comprise physical mixtures of chemically distinct polymers.

7. The composite composition of claim 1 wherein the inorganic particles are chemically bonded to a subset of the distinct polymers of the blend of distinct polymers.

8. The composite composition of claim 1 wherein the composite is localized within boundaries on a surface of a substrate.

9. The composite composition of claim 1 wherein the inorganic particles comprise metal/metalloid particles, metal/metalloid oxides, metal/metalloid nitrides, metal/metalloid carbides, metal/metalloid sulfides, metal/metalloid phosphates, or mixtures thereof.

10. A structure comprising the composite of claim 1.

11. The structure of claim 10 wherein the structure comprises a fiber.

12. The structure of claim 10 wherein the structure comprises a film.

13. The structure of claim 12 wherein the inorganic particles are localized within boundaries on the film.

14. The composite composition of claim 1 wherein the inorganic particles have an average diameter less than about 500 nm.

15. The composite composition of claim 1 wherein the inorganic particles have an average diameter from about 2 nm to about 100 nm.

16. The composite composition of claim 1 wherein effectively no particles have a diameter greater than about 4 times the average diameter.

17. The composite composition of claim 1 wherein at least about 95 percent of the particles have a diameter greater than about 40 percent of the average diameter and less than about 160 percent of the average diameter.

18. The composite composition of claim 1 wherein the blend of distinct polymers comprises polyamide, polycarbonate, polyimide, polyphosphazene, polyurethane, heterocyclic polymer, polyacrylamide, polysiloxane, polyacrylonitrile, polyvinyl alcohol, polyvinyl chloride, conjugated polymers, electrically conducting polymers and mixtures thereof.

19. The composite composition of claim 1 wherein the blend of distinct polymers comprises polyacrylates, poly acrylic acid or combinations thereof.

20. The composite composition of claim 1 having greater than about 50 weight percent inorganic particles.

21. The composite composition of claim 1 wherein a linker is bonded between the inorganic particle and the blend of distinct polymers.

22. A composite composition comprising chemically bonded inorganic particles and an ordered copolymer.

23. The composite composition of claim 22 wherein the ordered copolymer comprises a block copolymer.

24. The composite composition of claim 22 wherein the ordered copolymers comprise graft copolymers, comb copolymers, star-block copolymers, dendrimers or mixtures thereof.

25. The composite composition of claim 22 wherein the inorganic particles have an average diameter of less than about 500 nm.