Skip to main content
Top
Published in: Cellulose 10/2021

17-05-2021 | Original Research

Synthesis and properties of cellulose nanocrystal conjugates with reactive dyes

Authors: Oleg V. Surov, Marina I. Voronova, Anatoly G. Zakharov

Published in: Cellulose | Issue 10/2021

Log in

Activate our intelligent search to find suitable subject content or patents.

search-config
loading …

Abstract

In this work, we have developed methods of synthesis of cellulose nanocrystal (CNC) conjugates with chlorotriazine reactive dyes (RDs)—reactive violet, reactive-bright red and reactive bright-orange.) The prepared CNC-RD conjugates were characterized by a complex of techniques: UV–Vis, FTIR and solid-state 13C NMR spectroscopy, thermogravimetric and elemental analysis, particle size and zeta potential analysis, scanning electron and polarization optical microscopy. An analysis of the solid state 13C NMR spectra allowed us to conclude that the crystallinity index of the CNC-RD conjugates, compared to CNCs, did not change, i.e. RDs covalently bonded with the surface of the CNC particles and did not affect the CNC crystalline structure. The amount of the dye covalently bonded to the CNC particle surface was determined based on the elemental analysis data and using a square-cross-section model of the cellulose nanocrystal. The results obtained enabled us to make a conclusion that the RD covalent fixation was selective and occurred on one of the CNC ends (the so-called reducing end of the cellulose polymeric chain). Successful modification of the CNC surface was confirmed by UV–Vis spectroscopy. It was found that aqueous suspensions of the CNC-reactive violet dye conjugates possessed indicator properties. The size and charges of the CNC-RD particles in diluted aqueous suspensions were determined; the CNC-RD aqueous suspensions were found to have high colloidal stability. The stabilizing effect of the CNC-reactive violet dye conjugate for the formation of Pickering emulsions of the oil-in-water type was studied. It was shown that the CNC-reactive violet dye conjugate effectively stabilized n-decane emulsions in water.

Graphic abstract

Dont have a licence yet? Then find out more about our products and how to get one now:

Springer Professional "Technik"

Online-Abonnement

Mit Springer Professional "Technik" erhalten Sie Zugriff auf:

  • über 67.000 Bücher
  • über 390 Zeitschriften

aus folgenden Fachgebieten:

  • Automobil + Motoren
  • Bauwesen + Immobilien
  • Business IT + Informatik
  • Elektrotechnik + Elektronik
  • Energie + Nachhaltigkeit
  • Maschinenbau + Werkstoffe




 

Jetzt Wissensvorsprung sichern!

Springer Professional "Wirtschaft+Technik"

Online-Abonnement

Mit Springer Professional "Wirtschaft+Technik" erhalten Sie Zugriff auf:

  • über 102.000 Bücher
  • über 537 Zeitschriften

aus folgenden Fachgebieten:

  • Automobil + Motoren
  • Bauwesen + Immobilien
  • Business IT + Informatik
  • Elektrotechnik + Elektronik
  • Energie + Nachhaltigkeit
  • Finance + Banking
  • Management + Führung
  • Marketing + Vertrieb
  • Maschinenbau + Werkstoffe
  • Versicherung + Risiko

Jetzt Wissensvorsprung sichern!

Appendix
Available only for authorised users
Literature
Metadata
Title
Synthesis and properties of cellulose nanocrystal conjugates with reactive dyes
Authors
Oleg V. Surov
Marina I. Voronova
Anatoly G. Zakharov
Publication date
17-05-2021
Publisher
Springer Netherlands
Published in
Cellulose / Issue 10/2021
Print ISSN: 0969-0239
Electronic ISSN: 1572-882X
DOI
https://doi.org/10.1007/s10570-021-03898-4

Other articles of this Issue 10/2021

Cellulose 10/2021 Go to the issue