A series of aminophenyl-X-azolopyridines were diazotized and coupled to N,N-diethylaniline. The resulting disperse dyes showed a great versatility towards different fibres such as polyamide polyester and cellulose acetate. The disperse dyes were transformed into cationic dyes by reaction with methyl iodide. The quaternized dyes dyed polyacrylonitrile fibres with excellent uniformity without using a retarding agent. Physical and spectroscopic parameters fastness on dyed fabrics and colour data were correlated with the structure of the dyes. Two-dimensional proton-NMR NOESY experiments were useful for the assessment of particular structures.

Disperse and Cationic Azo Dyes from Heterocyclic Intermediates

VISCARDI, Guido;SAVARINO, Piero;BARNI, Ermanno;QUAGLIOTTO, Pierluigi;
1992

Abstract

A series of aminophenyl-X-azolopyridines were diazotized and coupled to N,N-diethylaniline. The resulting disperse dyes showed a great versatility towards different fibres such as polyamide polyester and cellulose acetate. The disperse dyes were transformed into cationic dyes by reaction with methyl iodide. The quaternized dyes dyed polyacrylonitrile fibres with excellent uniformity without using a retarding agent. Physical and spectroscopic parameters fastness on dyed fabrics and colour data were correlated with the structure of the dyes. Two-dimensional proton-NMR NOESY experiments were useful for the assessment of particular structures.
19
69
79
http://www.journals.elsevier.com/dyes-and-pigments/
G. VISCARDI; P. SAVARINO; BARNI E.; QUAGLIOTTO P.; G. DI MODICA; M. BOTTA
File in questo prodotto:
File Dimensione Formato  
1992 Viscardi Disperse DyesPigm art.192.pdf

Accesso riservato

Descrizione: PDF Editoriale
Tipo di file: PDF EDITORIALE
Dimensione 455.68 kB
Formato Adobe PDF
455.68 kB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2318/21603
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 3
  • ???jsp.display-item.citation.isi??? 3
social impact