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US4755326A
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Electron-donor dopant, method of improving conductivity of polymers by doping therewith, and a polymer so treated
Assignee: United States Department of Energy
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Filing: 1984-07-27
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Granted: 1988-07-05
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Expires: 2004-07-27
Abstract
Abstract Polymers with conjugated backbones, both polyacetylene and polyaromatic heterocyclic types, are doped with electron-donor agents to increase their electrical conductivity. The electron-donor agents are either electride dopants made in the presence of lithium or dopants derived from alkalides made in the presence of lithium. The dopants also contain a metal such as cesium and a trapping agent such as a crown ether.
Inventors
- 👤 Raimond Liepins
- 👤 Mahmoud Aldissi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:17
CPC Classifications
C; C08; C08G; C08G61/00; C08G61/12; C08G61/122; H; H01; H01B; H01B1/00; H01B1/06; H01B1/12; H01B1/124; H01B1/127; H01B1/128
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
85 words
The electrically conductive material comprising a polymer with a conjugated backbone selected from the group consisting of polyacetylene, polypyrrone, and polyphenylquinoxaline, said polymer being electron-donor doped to a controlled degree with an agent derived from an electride dopant or a dopant derived from an alkalide both of which contain a trapping agent being selected from the group consisting of: a crown ether, 1,4,7,10,13,16-hexaoxacyclooctadecane, cryptand, methyl ether cyclodextrin, spherand, methyl ether calixarene, podand, and an octopus molecule, said agent being made in the presence of lithium.
Claim 2
Dependent Claim
85 words
The electrically conductive material comprising a polymer with a conjugated backbone selected from the group consisting of polyacetylene, polypyrrone, and polyphenylquinoxaline, said polymer being electron-donor doped to a controlled degree with an agent derived from an electride dopant or a dopant derived from an alkalide both of which contain a trapping agent being selected from the group consisting of: a crown ether, 1,4,7,10,13,16-hexaoxacyclooctadecane, cryptand, methyl ether cyclodextrin, spherand, methyl ether calixarene, podand, and an octopus molecule, said agent being made in the presence of lithium.
Claim 3
Dependent Claim
14 words
The electrically conductive material of claim 1, wherein the electride or alkalide contains cesium.
Claim 4
Dependent Claim
15 words
The electrically conductive material of claim 1, wherein the trapping agent is a crown ether.
Claim 5
Dependent Claim
15 words
The electrically conductive material of claim 3, wherein the crown ether trapping agent is 1,4,7,10,13,16-hexaoxacyclooctadecane.
Claim 6
Dependent Claim
14 words
The electrically conductive material of claim 1, wherein the trapping agent is a cryptand.
Claim 7
Dependent Claim
16 words
The electrically conductive material of claim 1, wherein the trapping agent is a methyl ether cyclodextrin.
Claim 8
Dependent Claim
14 words
The electrically conductive material of claim 1, wherein the trapping agent is a spherand.
Claim 9
Dependent Claim
16 words
The electrically conductive material of claim 1, wherein the trapping agent is a methyl ether calixarene.
Claim 10
Dependent Claim
14 words
The electrically conductive material of claim 1, wherein the trapping agent is a podand.
Claim 11
Dependent Claim
15 words
The electrically conductive material of claim 1, wherein the trapping agent is an octopus molecule.
Claim 12
Dependent Claim
12 words
The electrically conductive material of claim 1, wherein the polymer is polyacetylene.
Claim 13
Dependent Claim
12 words
The electrically conductive material of claim 1, wherein the polymer is polypyrrone.
Claim 14
Dependent Claim
15 words
The electrically conductive material of claim 12, wherein the polypyrrone has the following structure: ##STR10##
Claim 15
Dependent Claim
15 words
The electrically conductive material of claim 13, wherein the polymer is cured at 250° C.
Claim 16
Dependent Claim
15 words
The electrically conductive material of claim 13, wherein the polymer is cured at 350° C.
Claim 17
Dependent Claim
15 words
The electrically conductive material of claim 12, wherein the polypyrrone has the following structure: ##STR11##
Claim 18
Dependent Claim
12 words
The electrically conductive material of claim 1, wherein the polymer is polyphenylquinoxaline.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-07-05 | 1992-01-04 | 1992-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-07-05 | 1996-01-04 | 1996-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-07-05 | 2000-01-04 | 2000-07-05 | $7700.00 | Window Closed / Lapsed |