Estimation of the surface sulfur content of cellulose nanocrystals prepared by sulfuric acid hydrolysis

• Published in: Cellulose (London) Vol. 20; no. 2; pp. 785 - 794
• Main Authors: Abitbol, Tiffany, Kloser, Elisabeth, Gray, Derek G.
• Format: Journal Article
• Language: English
• Published: Dordrecht Springer Netherlands 01.04.2013; Springer Nature B.V
• Subjects: acid hydrolysis; Bioorganic Chemistry; Cellulose; Ceramics; Chemistry; Chemistry and Materials Science; Composites; Crystallites; Dialysis; esters; Glass; Hemodialysis; Hydrolysis; Ion exchange; Ion exchange resins; Material properties; Nanocrystals; Natural Materials; Organic Chemistry; Original Paper; Physical Chemistry; Polymer Sciences; reproducibility; resins; sulfates; Sulfur; Sulfur content; Sulfuric acid; Surface charge; Sustainable Development; Titration; Ultrafiltration; Sulfur content; Surface charge; Membrane ultrafiltration; Cellulose nanocrystals; Electrostatic stabilization; Sulfate half-esters; Dialysis; Ion exchange resin; Conductometric titration

ABSTRACT The conditions required for the accurate measurement of the sulfur content of cellulose nanocrystals (CNCs) by conductometric titration are discussed. CNCs from sulfuric acid hydrolysis are electrostatically stabilized in aqueous suspension due to the introduction of charged sulfate ester g...