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Title: Water-soluble conductive polymers

Polymers which are soluble in water and are electrically conductive. The monomer repeat unit is a thiophene or pyrrole molecule having an alkyl group substituted for the hydrogen atom located in the beta position of the thiophene or pyrrole ring and having a surfactant molecule at the end of the alkyl chain. Polymers of this class having 8 or more carbon atoms in the alkyl chain exhibit liquid crystalline behavior, resulting in high electrical anisotropy. The monomer-to-monomer bonds are located between the carbon atoms which are adjacent to the sulfur or nitrogen atoms. The number of carbon atoms in the alkyl group may vary from 1 to 20 carbon atoms. The surfactant molecule consists of a sulfonate group, or a sulfate group, or a carboxylate group, and hydrogen or an alkali metal. Negative ions from a supporting electrolyte which may be used in the electrochemical synthesis of a polymer may be incorporated into the polymer during the synthesis and serve as a dopant to increase the conductivity.
Authors:
 [1]
  1. (Sante Fe, NM)
Publication Date:
OSTI Identifier:
867173
Report Number(s):
US 4880508
DOE Contract Number:
W-7405-ENG-36
Resource Type:
Patent
Research Org:
Los Alamos National Laboratory (LANL), Los Alamos, NM
Country of Publication:
United States
Language:
English
Subject:
water-soluble; conductive; polymers; polymers; soluble; water; electrically; conductive; monomer; repeat; unit; thiophene; pyrrole; molecule; alkyl; substituted; hydrogen; atom; located; beta; position; thiophene; pyrrole; surfactant; molecule; alkyl; chain; polymers; carbon; atoms; alkyl; chain; exhibit; liquid; crystalline; behavior; resulting; electrical; anisotropy; monomer-to-monomer; bonds; located; carbon; atoms; adjacent; sulfur; nitrogen; atoms; carbon; atoms; alkyl; vary; 20; carbon; atoms; surfactant; molecule; consists; sulfonate; sulfate; carboxylate; hydrogen; alkali; metal; negative; supporting; electrolyte; electrochemical; synthesis; polymer; incorporated; polymer; synthesis; serve; dopant; increase; conductivity; chemical synthesis; alkyl chain; alkyl chain; monomer repeat; conductive polymers; liquid crystalline; alkali metal; electrically conductive; carbon atoms; carbon atoms; carbon atoms; carbon atoms; liquid crystal; conductive polymer; carbon atom; carbon atom; carbon atom; carbon atom; hydrogen atom; repeat unit; supporting electrolyte; nitrogen atom; nitrogen atoms; surfactant molecule; surfactant molecule; pyrrole molecule; water-soluble conductive; atom located; beta position /205/252/524/526/528/