Water-soluble polythiophene polymers

Details Water-soluble polythiophene polymers Water-soluble polythiophene polymers

2006-06-22

2008-10-28

Truong, Duc (Department: 1796)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From sulfur-containing reactant

C528S377000, C528S378000, C528S379000, C528S380000, C528S488000, C528S489000, C528S495000

Reexamination Certificate

active

07442759

ABSTRACT:
The invention provides a water-soluble polymer having formula I:where R1and R2are independently —H, -alkylCO2A, —(CH2)n-aryl-(CH2)nCO2A, —(CH2)n-heterocycle-(CH2)nCO2A, or —(CH2)n-cycloalkyl-(CH2)nCO2A, where n is an integer from 0 to 200, and A is an alkali metal cation, with the proviso that only one of R1and R2is —H. Methods of preparing the water-soluble polymers and thin films prepared therefrom are also described.

REFERENCES:
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patent: 2004/0030091 (2004-02-01), McCullough et al.
patent: 0402269 (1990-12-01), None
patent: WO-2007146074 (2007-12-01), None
McCullough, The Chemistry of conducting polythiophenes; Advance Materials, vol. 10, No. 2, 1998, pp. 93-114.

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