Water-soluble conductive polymers

Patent · Sun Jan 01 00:00:00 EST 1989

OSTI ID:867173

Aldissi, Mahmoud ^[1]

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1. Sante Fe, NM

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.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• DOE Contract Number: W-7405-ENG-36
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4880508
• OSTI ID: 867173
• Country of Publication: United States
• Language: English

Related Subjects

water-soluble
conductive
polymers
soluble
water
electrically
monomer
repeat
unit
thiophene
pyrrole
molecule
alkyl
substituted
hydrogen
atom
located
beta
position
surfactant
chain
carbon
atoms
exhibit
liquid
crystalline
behavior
resulting
electrical
anisotropy
monomer-to-monomer
bonds
adjacent
sulfur
nitrogen
vary
20
consists
sulfonate
sulfate
carboxylate
alkali
metal
negative
supporting
electrolyte
electrochemical
synthesis
polymer
incorporated
serve
dopant
increase
conductivity
chemical synthesis
alkyl chain
monomer repeat
conductive polymers
liquid crystalline
alkali metal
electrically conductive
carbon atoms
liquid crystal
conductive polymer
carbon atom
hydrogen atom
repeat unit
supporting electrolyte
nitrogen atom
nitrogen atoms
surfactant molecule
pyrrole molecule
water-soluble conductive
atom located
beta position
/205/252/524/526/528/