The synthesis and properties of benzoxazole fluorescent brighteners for application to polyester fibers

Autor: Seong-il Um
Rok vydání: 2007
Předmět:
Zdroj: Dyes and Pigments. 75:185-188
ISSN: 0143-7208
DOI: 10.1016/j.dyepig.2006.04.024
Popis: Fluorescent brighteners based on dicarboxylic acid derivatives are compounds of the benzoxazole type, synthesized by a simple reaction using polyphosphoric acid. The obtained compounds ( 4a – c , 6a – c , 8a – c ) were characterized by the analysis of proton NMR spectrum and confirmed by UV spectrum. The physical properties of the compounds ( 4a – c , 6a – c , 8a – c ) were performed by fastness test and whiteness measurement.
Databáze: OpenAIRE