US5232574A
Expired / Lapsed
US
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Polyviologen modified electrode and use thereof
Assignee: Osaka Soda Co Ltd
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Filing: 1991-08-21
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Granted: 1993-08-03
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Expires: 2011-08-21
Abstract
Abstract A polyviologen modified electrode which comprises an insoluble film of polyviologen polymerized on a base electrode by electrochemical reduction and electrodeposition of monomer represented by the formula (I) ##STR1## Wherein R 1 is a divalent group selected from the groups consisting of alkylene, cycloalkylene, arylene and arylalkylene or a trivalent group selected from the groups consisting of alkanetriyl, cycloalkanetriyl, arylalkanetriyl and aryltriyl; X - is a counter anion; m is 2 or 3, which electrode has no performance problem in connection with the solubility to water and organic solvent and the annealing phenomenon.
Inventors
- 👤 Tetsuyuki Saika
- 👤 Takeo Shimidzu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:34
CPC Classifications
C; C08; C08G; C08G61/00; C08G61/12
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
75 words
A polyviologen modified electrode which comprises an insoluble film of polyviologen polymerized on a base electrode by electrochemical reduction with decyanation and electro-deposition of monomer represented by the formula (I) ##STR16## Wherein R 1 is a divalent group selected from the groups consisting of alkylene, cycloalkylene, arylene and arylalkylene or a trivalent group selected from the groups consisting of alkanetriyl, cycloalkanetriyl, arylalkanetriyl and aryltriyl; X - is a counter anion; m is 2 or 3.
Claim 2
Dependent Claim
75 words
A polyviologen modified electrode which comprises an insoluble film of polyviologen polymerized on a base electrode by electrochemical reduction with decyanation and electro-deposition of monomer represented by the formula (I) ##STR16## Wherein R 1 is a divalent group selected from the groups consisting of alkylene, cycloalkylene, arylene and arylalkylene or a trivalent group selected from the groups consisting of alkanetriyl, cycloalkanetriyl, arylalkanetriyl and aryltriyl; X - is a counter anion; m is 2 or 3.
Claim 3
Dependent Claim
72 words
The polyviologen modified electrode according to claim 1 in which the insoluble film of polyviologen polymerized on the base electrode has a structure of main chain part represented by the formula (II): ##STR17## wherein R 1 is a divalent group selected from the groups consisting of alkylene, cycloalkylene, arylene and arylalkylene or a trivalent group selected from the groups consisting of alkanetriyl, cycloalkanetriyl, arylalkanetriyl and aryltriyl; Xa - is a counter anion.
Claim 4
Dependent Claim
60 words
The polyviologen modified electrode according to claim 2, in which the insoluble film of polyviologen has a structure of main chain part represented by the formula (II) wherein Xa - is a polyanion and wherein the insoluble film of polyviologen is polymerized on the base electrode by electrochemical reduction and ion-bonding crosslinking electrodeposition of monomer represented by the formula (I).
Claim 5
Dependent Claim
46 words
The polyviologen modified electrode according to claim 1, in which the base electrode is selected from the group consisting of a metal electrode, a glass electrode coated with Indium Tin Oxide or Tin Oxide and a plastic electrode coated with Indium Tin Oxide or Tin Oxide.
Claim 6
Independent Claim
65 words
A method for preparing a polyviologen modified electrode, in which cathodic potential is applied to an base electrode to electrochemically reduce a monomer represented by the formula (I) in a liquid electrolyte with a controlled pH of 7 to 10, thereby polymerization of the monomer and electrodeposition is made on the electrode to form a film of polyviologen attached to a surface of the electrode.
Claim 7
Independent Claim
65 words
A method for preparing a polyviologen modified electrode, in which cathodic potential is applied to an base electrode to electrochemically reduce a monomer represented by the formula (I) in a liquid electrolyte with a controlled pH of 7 to 10, thereby polymerization of the monomer and electrodeposition is made on the electrode to form a film of polyviologen attached to a surface of the electrode.
Claim 8
Dependent Claim
24 words
The method for preparing a polyviologen modified electrode according to claim 5, in which the electrolyte contains a polyanion electrolyte as a supporting electrolyte.
Claim 9
Dependent Claim
23 words
The method for preparing a polyviologen modified electrode according to claim 6, in which the polyanion electrolyte is a polysulfonate or a polycarboxylate.
Claim 10
Dependent Claim
15 words
An electrochemical cell which comprises at least one modified polyviologen electrode according to claim 1.
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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) | 1996-08-02 | 1997-02-01 | 1997-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-08-02 | 2001-02-01 | 2001-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-08-02 | 2005-02-01 | 2005-08-03 | $7700.00 | Window Closed / Lapsed |