Abstract
Several monoazo pigments containing the residues of 3-aminophthalimide and its N- methyl and N-phenyl derivatives in the pigment molecule have been prepared. Their physicochemical and fastness properties were examined and compared with those of analogous 4-aminophthalimide pigments. Based on the observed differences in physicochemical properties and different solvent stabilities, it is suggested that the 3-aminophthalimide pigments form mostly intra-molecular hydrogen bonds whereas the 4-aminophthalimide pigments form mainly inter-molecular hydrogen bonds. THe hypothesis has been verified by the IR and UV spectra of 3- and 4-acetylaminophthalimide and of their N-methyl derivatives as model compounds.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
