Patent ID: 7807758

Claim:
A method for preparing a defunctionalized alkylenedioxyheterocycle polymer or copolymer comprising the steps of: providing a polycarboxylic acid derivative functionalized alkylenedioxyheterocycle polymer or copolymer with a degree of polymerization from 10 to 1,000, the fraction of polycarboxylic acid derivative functionalized alkylenedioxyheterocycle units is 0.1 to 1.0, and wherein one or more optional co-repeating units are derived from monomers selected from the group consisting of thiophene, bithiophene, terthiophene, 3-methylthiophene, 3-alkylthiophene (alkyl=C2 to C20), 3-methoxythiophene, 3-alkoxythiophene (alkoxy=C2 to C20), 3,4-ethylenedioxythiophene, 3,4-propylenedioxythiophene, 3,4-butylenedioxythiophene, pyrrole, bipyrrole, 3-methylpyrrole, 3-alkylpyrrole (alkyl=C2 to C20), 3-methoxypyrrole, 3-alkoxypyrrole (alkoxy=C2 to C20), 3,4-ethylenedioxypyrrole, 3,4-propylenedioxqpyrrole, 3,4-butylenedioxypyrrole, N-methylpyrrole, N-alkylpyrrole (alkyl=C2 to C20), N-methyl-3,4-ethylenedioxypyrrole, N-alkyl-3,4-ethylenedioxypyrrole (alkyl=C2 to C20), N-methyl-3,4-propylenedioxypyrrole, N-alkyl-3,4-propylenedioxypyrrole (alkyl=C2 to C20), carbazole, N-methylcarbazole, and N-alkylcarbazole (alkyl=C2 to C20); and transforming the polycarboxylic acid derivative functionalized alkylenedioxyheterocycle polymer or copolymer into a defunctionalized alkylenedioxyheterocycle polymer or copolymer comprising a polyhydroxy, polythiol, polyamino, or polycarboxylic acid functionalized alkylenedioxyheterocycle polymer or copolymer with a degree of polymerization from 10 to 1,000, the fraction of polycarboxylic acid derivative functionalized alkylenedioxyheterocycle units is 0.1 to 1.0, and wherein one or more optional co-repeating units are derived from the monomers selected from the group consisting of thiophene, bithiophene, terthiophene, 3-methylthiophene, 3-alkylthiophene (alkyl=C2 to C20), 3-methoxythiophene, 3-alkoxythiophene (alkoxy=C2 to C20), 3,4-ethylenedioxythiophene, 3,4-propylenedioxythiophene, 3,4-butylenedioxythiophene, pyrrole, bipyrrole, 3-methylpyrrole, 3-alkylpyrrole (alkyl=C2 to C20), 3-methoxypynole, 3-alkoxypyrrole (alkoxy=C2 to C20), 3,4-ethylenedioxypyrrole, 3,4-propylenedioxypynole, 3,4-butylenedioxypyrrole, N-methylpyrrole, N-alkylpyrrole (alkyl=C2 to C20), N-methyl-3,4-ethylenedioxypyrrole, N-alkyl-3,4-ethylenedioxypyrrole (alkyl=C2 to C20), N-methyl-3,4-propylenedioxypyrrole, N-alkyl-3,4-propylenedioxypyrrole (alkyl=C2 to C20), carbazole, N-methylcarbazole, and N-alkylcarbazole (alkyl=C2 to C20).