Patent US3392958A successfully refreshed from Google Patents.
EP0164974A2
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Polymer having isothianaphthene structure and electrochromic display
Assignee: University of California Berkeley
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Filing: 1985-05-31
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Granted: —
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Expires: 2005-05-31
Abstract
Abstract A polymer having an isothianaphthene structure represented by the formula (la) and/or (Ib): where R 1 and R 2 each represents a hydrogen atom or a hydrocarbon residue having 1 to 5 carbon atoms such as methyl, methoxy and thiomethyl or R 1 and R 2 together form, along with the benzene ring, a fused ring which is naphthalene; X is sulfur, selenium or tellurium; Y represents an anion of an electrolyte; z represents a number from 0.01 to 1 showing a ratio of the anion per mol of a monomer; n represents a number of from 5 to 500 showing a degree of polymerization. The polymer is useful in an electrochromic display wherein a conductive membrane of the polymer formed on a conductive transparent base is used as a display base and an opposing electrode is arranged thereunder via a liquid electrolyte.
Inventors
- 👤 Fred Wudl
- 👤 Masao Kobayashi
- 👤 Alan Heeger
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-06 08:16
CPC Classifications
C; C08; C08G; C08G61/00; C08G61/12; C08G61/122; C08G61/123; C09; C09K; C09K9/00; C09K9/02; G; G02; G02F; G02F1/00; G02F1/01; G02F1/15; G02F1/1514; G02F1/1516; G02F1/15165; H; H01; H01B; H01B1/00; H01B1/06; H01B1/12; H01B1/124; H01B1/127; H01M; H01M4/00; H01M4/02; H01M4/36; H01M4/60; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
105 words
A polymer having an isothianaphthene structure represented by the formula (Ia) and/or (Ib): wherein R 1 and R 2 each represents a hydrogen atom or a hydrocarbon residue having 1 to 5 carbon atoms or R 1 and R 2 together form, along with the benzene ring to which they are attached, a fused ring which is naphthalene; X is sulfur, selenium or tellurium; Y represents an anion of an electrolyte; z represents a number from 0.01 to 1 showing a ratio of the anion per mol of a monomer; and n represents a number of from 5 to 500 showing a degree of polymerization.
Claim 2
Dependent Claim
105 words
A polymer having an isothianaphthene structure represented by the formula (Ia) and/or (Ib): wherein R 1 and R 2 each represents a hydrogen atom or a hydrocarbon residue having 1 to 5 carbon atoms or R 1 and R 2 together form, along with the benzene ring to which they are attached, a fused ring which is naphthalene; X is sulfur, selenium or tellurium; Y represents an anion of an electrolyte; z represents a number from 0.01 to 1 showing a ratio of the anion per mol of a monomer; and n represents a number of from 5 to 500 showing a degree of polymerization.
Claim 3
Dependent Claim
74 words
A polymer according to claim 1, wherein said anion X - of the electrolyte in the isothianaphthene structure represented by the formula (Ib) is selected from Cl - , Br - , I - , ClO 4 - , BF 4 - , PF 6 - , AsF 6 - , SbF 6 - , AlCl 4 - , AlBr 4 - , FeCl 4 - , and CF 3 SO 3 - .
Claim 4
Dependent Claim
31 words
A polymer according to claim 1 or 2 wherein R and R each represent hydrogen, C 1 -C 5 alkyl, C 1 -C 5 alkoxy or C 1 -C 5 alkylthio.
Claim 5
Dependent Claim
45 words
A polymer according to claim 1 having the structure ( I a), wherein R 1 and R 2 each represent hydrogen, methyl, ethyl, methoxy or thiomethyl or R 1 and R 2 together form, along with the benzene ring, a fused ring which is naphthalene.
Claim 6
Dependent Claim
14 words
Poly(isothianaphthene) or doped poly(isothianaphthene), where X is sulfur and R and R' are hydrogen.
Claim 7
Dependent Claim
14 words
Poly(isothianaphthene) or doped poly(isothianaphthene), where X is sulfur and R and R' are hydrogen.
Claim 8
Dependent Claim
37 words
A method of preparing poly(isothianaphthene) which comprises the electrochemical polymerization of an isothianaphthene compound of the formula wherein R 1 , R 2 and X are as defined in claim 1, in the presence of nucleophilic anions.
Claim 9
Independent Claim
20 words
A method of preparing poly(isothianaphthene) which comprises the chemical"polymerization of isothianaphthene or dihydroisothianaphthene-S-oxide in the presence of cationic polymerization catalysts.
Claim 10
Independent Claim
20 words
A method of preparing poly(isothianaphthene) which comprises the chemical"polymerization of isothianaphthene or dihydroisothianaphthene-S-oxide in the presence of cationic polymerization catalysts.
Claim 11
Independent Claim
11 words
A method of preparing poly(isothianaphthene) which comprises the dehydrogenation of poly(dihydroisothianaphthene).
Claim 12
Independent Claim
11 words
A method of preparing poly(isothianaphthene) which comprises the dehydrogenation of poly(dihydroisothianaphthene).
Claim 13
Dependent Claim
89 words
A high molecular weight conductive membrane useful as an electrochromic layer in the form of a polymer capable of being reversibly oxidized or reduced and having an isothianaphthene structure represented by the formula (III): wherein R 1 and R 2 represent hydrogen or hydrocarbon having a carbon number of 1 - 5, X is sulfur, selenium or tellurium, Y - represents an anion, z is a value of 0-0.40 representing the ratio of anion per isothianaphthene structure unit, and n represents a degree of polymerization of 5 - 500.
Claim 14
Dependent Claim
89 words
A high molecular weight conductive membrane useful as an electrochromic layer in the form of a polymer capable of being reversibly oxidized or reduced and having an isothianaphthene structure represented by the formula (III): wherein R 1 and R 2 represent hydrogen or hydrocarbon having a carbon number of 1 - 5, X is sulfur, selenium or tellurium, Y - represents an anion, z is a value of 0-0.40 representing the ratio of anion per isothianaphthene structure unit, and n represents a degree of polymerization of 5 - 500.
Claim 15
Dependent Claim
57 words
An electrochromic display wherein high molecular weight conductive membrane formed on a conductive transparent base is used as a display base and an opposing electrode is arranged thereunder via a liquid electrolyte, characterized in that said high molecular weight conductive membrane is of a polymer having an isothianaphthene structure and capable of being reversibly oxidized or reduced.
Claim 16
Dependent Claim
57 words
An electrochromic display wherein high molecular weight conductive membrane formed on a conductive transparent base is used as a display base and an opposing electrode is arranged thereunder via a liquid electrolyte, characterized in that said high molecular weight conductive membrane is of a polymer having an isothianaphthene structure and capable of being reversibly oxidized or reduced.
Claim 17
Dependent Claim
30 words
Use of a polymer as claimed in any one of claims 1 to 5 as a rechargeable battery electrode, as an electrochromic material or in a solar energy conversion device.
References Cited (Backward Citations)
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