Chemical synthesis of water-soluble, chiral conducting-polymer complexes

Patent · Wed Jan 01 04:00:00 EST 2003

OSTI ID:875018

Wang, Hsing-Lin ^[1]; McCarthy, Patrick A ^[2]; Yang, Sze Cheng ^[3]

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1. Los Alamos, NM
2. Oakland, CA
3. Wakefield, RI

The template-guided synthesis of water-soluble, chiral conducting polymer complexes is described. Synthesis of water-soluble polyaniline complexes is achieved by carefully controlling the experimental parameters such as; acid concentration, ionic strength, monomer/template ratio, total reagent concentration, and order of reagent addition. Chiral (helical) polyaniline complexes can be synthesized by addition of a chiral inducing agent (chiral acid) prior to polymerization, and the polyaniline helix can be controlled by the addition of the (+) or (-) form of the chiral acid. Moreover the quantity of chiral acid and the salt content has a significant impact on the degree of chirality in the final polymer complexes. The polyaniline and the template have been found to be mixed at the molecular level which results in chiral complexes that are robust through repeated doping and dedoping cycles.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM
• DOE Contract Number: W-7405-ENG-36
• Assignee: The Regents of the University of California (Los Alamos, NM)
• Patent Number(s): US 6514432
• OSTI ID: 875018
• Country of Publication: United States
• Language: English

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