NMR Characterization of Polymers Formed in Diazotizing Mixtures of Luminol and 3-Amino-L-Tyrosine.
Abstract
The work reported here focused on chemical characterizations of a polymer with interesting luminescent properties, which promises to be useful as an analytical tool in studies of radiofrequency energy deposition in dielectric absorbers. The polymer is formed by diazotizing a mixture of luminol and 3-amino-L-tyrosine and, after removing the aqueous solvent by acetone precipitation, aging the diazotized products for a month at 50 C (i.e., a solid-state reaction). The polymer is anionic and may be precipitated with barium divalent cation. For the purpose of further structural characterizations it was found that this water-soluble polymer may be fragmented by digestion in an aqua regialike mixture (50:50 concentrated HCl/HNO3 ), which converts the broadline hydrogen NMR spectrum typical of polymers to a complex pattern of narrow lines. jg
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 12, 1995
- Accession Number
- ADA294533
Entities
People
- John R. Wright