Research on Colorant Systems Whose Characteristics May be Reversed: Part 2
Abstract
This report describes continuation of work begun under Contract DAAG17-73-C-0233 on redox systems whose colors can be varied reversibly by application of modest electrical potentials. Several anthraquinone and bipyridylium derivatives were investigated in cells containing at least one tin oxide transparent electrode, the other being tin oxide or some selected metal. For the compounds studied, potentials were in the range up to 3.0 volts. Color changes were monitored by mounting cells on a colorimeter and determining CIE chromaticity coordinates and luminous reflectance during forward and reverse reactions of the redox systems. Using two tin oxide electrodes, successful cells were found with anthraquinone-2,6- disulfonic acid (Na salt), an adjuvant and differently colored inert pigments. Attempts were made to apply the technique to textile-like materials with a combination called System 8 being the most promising.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1976
- Accession Number
- ADA041306
Entities
People
- John O. Warwicker
- S. G. Graham