The ten isomeric naphthalene dicarboxylic acids have been prepared using standard methods, and the u&violet absorption spectra of these acids in water have been obtained. The spectra and molar extinction coefficients can serve to characterize these acids, which may be found in the products of the ox
Infrared spectra of naphthalene-1,8-dicarboxylic acid and naphthalene-1,8-dicarboxylic anhydride
✍ Scribed by Lawrence J. Fitzgerald; Roger E. Gerkin; Gordon D. Renkes
- Publisher
- Elsevier Science
- Year
- 1991
- Tongue
- English
- Weight
- 198 KB
- Volume
- 2
- Category
- Article
- ISSN
- 0924-2031
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The 10 isomeric naphthalene dicarboxylic acids have been eluted from a column of Dowex 1 anion exchange resin using potassium bromide O-l M. By comparison of their behaviour, it now seems possible that failure to observe these acids in the sub-humic acids of Lawson and co-workers may have been due t
## Abstract Two series of thermotropic poly(ester‐anhydride)s, LC‐PEAs, were studied. The first series was prepared by polycondensation of naphthalene‐2,6‐dicarbonyl dichloride with silylated 4‐hydroxybenzoic acid, silylated and substituted 4‐hydroxybenzoic acids or silylated 6‐hydroxy‐2‐naphthoic