US4911801A
Expired / Lapsed
US
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Electrically conductive polyparaphenylene polymers, and methods for their preparation and use
Assignee: University of Utah
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Filing: 1985-10-01
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Granted: 1990-03-27
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Expires: 2005-10-01
Abstract
Abstract Electrically conductive polyparaphenylene polymer compositions are disclosed, as well as methods for their preparation and use, including use of the polymers in constructing a sensor. The polymer compositions have the characteristics of being both solution processible, as well as electrically conductive. The polymers are produced by placing a metal electrode into an aprotic solution of biphenyl. Current is then passed through the electrode such that the electrode becomes the anode and such that the biphenyl polymerizes and is deposited on the electrode. A sensor is produced by incorporating a sensor species into a polyparaphenylene polymer prepared according to the teaching of the present invention. This can be accomplished by polymerizing the biphenyl in the presence of the sensor species.
Inventors
- 👤 B. Stanley Pons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 00:53
CPC Classifications
C; C08; C08G; C08G61/00; C08G61/02; C08G61/10; H; H01; H01B; H01B1/00; H01B1/06; H01B1/12; H01B1/124; H01B1/128
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
63 words
A method of producing an electrically conductive, solution processible polymer comprising the steps of: placing a nonreactive electrode into contact with an aprotic solution of biphenyl, said aprotic solution further comprising a supporting electrolyte; and passing a current through the electrode and the biphenyl solution such that the electrode becomes the anode and such that a polymer is electrochemically deposited on the electrode.
Claim 2
Independent Claim
63 words
A method of producing an electrically conductive, solution processible polymer comprising the steps of: placing a nonreactive electrode into contact with an aprotic solution of biphenyl, said aprotic solution further comprising a supporting electrolyte; and passing a current through the electrode and the biphenyl solution such that the electrode becomes the anode and such that a polymer is electrochemically deposited on the electrode.
Claim 3
Dependent Claim
36 words
A method as defined in claim 1 wherein the solvent in which the biphenyl is dissolved and is selected from the group consisting of acetonitrile, chlorinated alkanes having from 1 to 6 carbon atoms, and nitromethane.
Claim 4
Dependent Claim
14 words
A method as defined in claim 1 wherein the electrode is a platinum electrode.
Claim 5
Dependent Claim
27 words
A method as defined in claim 1 wherein the polymer is formed at a temperature in the range of from about -40° C. to about 250° C.
Claim 6
Dependent Claim
27 words
A method as defined in claim 1 wherein the polymer is formed at a temperature in the range of from about 15° C. to about 30° C.
Claim 7
Dependent Claim
27 words
A method as defined in claim 1 wherein the supporting electrolyte is selected from the group consisting of lithium perchlorate, lithium hexafluoroarsenate, tetra-n-butylammonium tetrafluoroborate, or mixtures thereof.
Claim 8
Dependent Claim
22 words
A method as defined in claim 1 wherein the current is directed through the electrode and the solution using slow scan voltammetry.
Claim 9
Dependent Claim
33 words
A method as defined in claim 1 wherein the current which flows through the electrode and biphenyl is in the range of from about 1 nA/cm 2 to about 1 A/cm 2 .
Claim 10
Dependent Claim
23 words
A method as defined in claim 1 wherein the aprotic solution of biphenyl contains a second species which becomes incorporated into the polymer.
Claim 11
Dependent Claim
29 words
A method as defined in claim 9 wherein the second species is selected from the group consisting of: manganese, cobalt, copper, nickel, iron, zinc, sodium, magnesium, or silver phthalocyanines.
Claim 12
Dependent Claim
23 words
A method as defined in claim 9 wherein the second species is selected from the group consisting of: iron, magnesium, or manganese tetraphenylprophyrins.
Claim 13
Independent Claim
91 words
A method of producing electrically conductive, processible polyparaphenylene from biphenyl, comprising the steps of: (a) obtaining an aprotic solution of biphenyl; (b) adding an electrolyte to the solution; (c) placing an electrode into the solution; (d) passing a current in the range of from about 1 nA/cm 2 to about 1 A/cm 2 through the electrode and the solution such that the electrode becomes the anode and such that polyparaphenylene is deposited on the surface of the electrode, while maintaining the solution at from about 15° C. to about 30° C.
Claim 14
Independent Claim
91 words
A method of producing electrically conductive, processible polyparaphenylene from biphenyl, comprising the steps of: (a) obtaining an aprotic solution of biphenyl; (b) adding an electrolyte to the solution; (c) placing an electrode into the solution; (d) passing a current in the range of from about 1 nA/cm 2 to about 1 A/cm 2 through the electrode and the solution such that the electrode becomes the anode and such that polyparaphenylene is deposited on the surface of the electrode, while maintaining the solution at from about 15° C. to about 30° C.
Claim 15
Dependent Claim
35 words
A method as defined in claim 9 wherein the solvent in which the biphenyl is dissolved is selected from the group consisting of acetonitrile, chlorinated alkanes containing from 1 to 6 carbon atoms, and nitromethane.
Claim 16
Dependent Claim
26 words
A method as defined in claim 9 wherein the electrolyte is selected from the group consisting of lithium perchlorate, lithium hexafluoroarsenate, tetra-n-butylammonium tetrafluoroborate, or mixtures thereof.
Claim 17
Dependent Claim
43 words
An electrically conductive, solution processible polymer comprising polyparaphenylene prepared by introducing a nonreactive electrode into an aprotic solution of biphenyl, said solution further comprising a supporting electrolyte, and passing current through the electrode such that the polymer is electrochemically deposited on the electrode.
Claim 18
Dependent Claim
43 words
An electrically conductive, solution processible polymer comprising polyparaphenylene prepared by introducing a nonreactive electrode into an aprotic solution of biphenyl, said solution further comprising a supporting electrolyte, and passing current through the electrode such that the polymer is electrochemically deposited on the electrode.
Claim 19
Dependent Claim
35 words
A polymer as defined in claim 14 wherein the solvent in which the biphenyl is dissolved is selected from the group consisting of acetonitrile, chlorinated alkanes containing from 1 to 6 carbon atoms, and nitromethane.
Claim 20
Dependent Claim
14 words
A polymer as defined in claim 15 wherein the electrode is a platinum electrode.
Claim 21
Dependent Claim
23 words
A polymer as defined in claim 15 wherein the polymer is formed at a temperature from about 15° C. to about 30° C.
Claim 22
Dependent Claim
31 words
A polymer as defined in claim 14 wherein the supporting electrode is selected from the group consisting of lithium pechlorate, lithium hexafluoroarsenate, tetra-n-butylammonium tetrafluorborate, or mixtures of this group of compounds.
Claim 23
Dependent Claim
21 words
a polymer as defined in claim 15 wherein the current passes through the electrode and the solution comprises slow scan voltammetry.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-03-26 | 1993-09-25 | 1994-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-03-26 | 1997-09-25 | 1998-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-03-26 | 2001-09-25 | 2002-03-27 | $7700.00 | Window Closed / Lapsed |