Method of making self-doped zwitterionic heterocyclic polymers
First Claim
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1. A method of making a self-doped zwitterionic conducting polymer having along its backbone a π
- -electron conjugated system, which method is selected from the following methods (A) or (B);
wherein method (A) which comprises;
(i) providing a polymer having along its backbone a π
-electron conjugated system which comprises a plurality of recurring monomer units, between about 0.01 and 100 mole % of said units having the structure (I);
##STR12## wherein Ht is a heterogroup selected from NH or S;
Y1 is selected from the group consisting of hydrogen and --R--X--M, whereinR is a linear or branched alkylene or alkylene ether having between 1 and about 10 carbon atoms;
X is a Bronsted acid anion selected from CO2 or SO3 ; and
M is a positive monovalent counterion except H+ ; and
(ii) converting at least one --R--X--M group to a --R--X--H group by adding acid, thereby rendering said polymer self-doped, with the proviso that external dopant is not needed and is not present;
ormethod (B) which comprises;
(a) providing at least one monomer having the structure;
##STR13## wherein Ht is a heterogroup selected from NH or S;
Y1 is selected from the group consisting of hydrogen and --R--X--M, whereinR is a linear or branched alkylene or alkylene ether having between 1 and about 10 carbon atoms;
--X--M is a Bronsted acid alkyl ester group, or X is a Bronsted acid anion selected from CO2 or SO3 and then M is a positive monovalent counterion, and(b) polymerizing said monomers, and if M is not H+, then(c) converting at least one --R--X--M group to a R--X--H group by adding acid, thereby rendering said polymer self-doped, with the proviso that external dopant is not needed and is not present.
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Abstract
A self-doped conducting polymer having along its backbone a π-electron conjugated system which comprises a plurality of monomer units, between about 0.01 and 100 mole % of the units having covalently linked thereto at least one Bronsted acid group. The conductive zwitterionic polymer is also provided. as are monomers useful in the preparation of the polymer and electrodes comprising the polymer.
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22 Claims
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1. A method of making a self-doped zwitterionic conducting polymer having along its backbone a π
- -electron conjugated system, which method is selected from the following methods (A) or (B);
wherein method (A) which comprises; (i) providing a polymer having along its backbone a π
-electron conjugated system which comprises a plurality of recurring monomer units, between about 0.01 and 100 mole % of said units having the structure (I);
##STR12## wherein Ht is a heterogroup selected from NH or S;
Y1 is selected from the group consisting of hydrogen and --R--X--M, whereinR is a linear or branched alkylene or alkylene ether having between 1 and about 10 carbon atoms; X is a Bronsted acid anion selected from CO2 or SO3 ; and M is a positive monovalent counterion except H+ ; and (ii) converting at least one --R--X--M group to a --R--X--H group by adding acid, thereby rendering said polymer self-doped, with the proviso that external dopant is not needed and is not present;
ormethod (B) which comprises; (a) providing at least one monomer having the structure;
##STR13## wherein Ht is a heterogroup selected from NH or S;
Y1 is selected from the group consisting of hydrogen and --R--X--M, whereinR is a linear or branched alkylene or alkylene ether having between 1 and about 10 carbon atoms; --X--M is a Bronsted acid alkyl ester group, or X is a Bronsted acid anion selected from CO2 or SO3 and then M is a positive monovalent counterion, and (b) polymerizing said monomers, and if M is not H+, then (c) converting at least one --R--X--M group to a R--X--H group by adding acid, thereby rendering said polymer self-doped, with the proviso that external dopant is not needed and is not present. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
- -electron conjugated system, which method is selected from the following methods (A) or (B);
Specification