期刊
JOURNAL OF THE AMERICAN OIL CHEMISTS SOCIETY
卷 89, 期 2, 页码 321-328出版社
WILEY
DOI: 10.1007/s11746-011-1912-y
关键词
Cardanol; Bis(azo) dye; Gasoline colorant; Cashew nut shell liquid; CNSL; Red dye
资金
- Center of Excellence for Petroleum, Petrochemicals and Advanced Materials and the Graduate School, Chulalongkorn University
Novel bis(azo) dyes were successfully prepared from the coupling of either natural cardanol or its hydrogenated derivative with a series of diazotized aromatic amines and diamines. These new dyes were fully characterized by NMR, infrared and UV-visible spectroscopy and mass spectrometry. The dyes are highly soluble in a variety of common organic solvents and gasoline as a consequence of the cardanol unit. The physical properties of gasoline according to American Society for Testing and Materials standard were unaffected by the presence of the bis( azo) dye derived from 1-(4aminophenylazo)-2-naphthol at a concentration of 6 ppm and the dye showed excellent stability over a 3 month period.
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