| Titre : |
Dimerised heterobifunctional reactive dyes. Part 1 : characterisation using quadrupole time-of-light mass spectrometry |
| Type de document : |
texte imprimé |
| Auteurs : |
Nadia Sultana, Auteur ; Yixin Liu, Auteur ; Harold S. Freeman, Auteur ; Nelson R. Vinueza, Auteur |
| Année de publication : |
2018 |
| Article en page(s) : |
p.470-477 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Bleu (couleur)
Colorants -- Analyse
Colorants réactifs
Dimères
Hexaméthylène diamine
Rouge (couleur)
Spectrométrie de masse
|
| Index. décimale : |
667.2 Colorants et pigments |
| Résumé : |
As part of an approach to enhancing the efficiency of reactive dye adsorption on cellulosic fibres at low electrolyte levels, commercially available dyes were dimerised using hexamethylenediamine (HMDA) as a linking group. A key component of this work involved using high-resolution mass spectrometry (HRMS) to characterise a group of polysulphonated heterobifunctional monochlorotriazine/vinyl sulphone reactive dyes (CI Reactive Yellow 176, CI Reactive Red 239, CI Reactive Blue 221, CI Reactive Red 194 and CI Reactive Blue 222) and their dimeric analogs. In this respect, dimeric dye ions of differently charged states were observed using HRMS-negative electrospray ionisation in combination with quadrupole time-of-flight mass spectrometry. For example, HRMS showed that the HMDA-linked reaction products were mixtures of the target (unhydrolysed) dimers, hydrolysed dimers, monoreacted products and hydrolysed unreacted dyes, with CI Reactive Yellow 176 and CI Reactive Red 194 producing the desired unhydrolysed dimers. |
| Note de contenu : |
- EXPERIMENTAL : Materials and reagents - Reactive dye dimer formation- Mass spectrometry
- RESULTS AND DISCUSSION : Characterisation of parent dyes - Characterisation of dimeric structures |
| DOI : |
10.1111/cote.12368 |
| En ligne : |
https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12368 |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=31381 |
in COLORATION TECHNOLOGY > Vol. 134, N° 6 (12/2018) . - p.470-477
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Dimerised heterobifunctional reactive dyes. Part 1 : characterisation using quadrupole time-of-light mass spectrometry in COLORATION TECHNOLOGY, Vol. 134, N° 6 (12/2018)
