Author, as appears in the article.: Pena, Carlos A; Puga, Alberto, V; Metlen, Andreas; Soto, Ana; Rodriguez, Hector
Department: Enginyeria Química
URV's Author/s: Puga Vaca, Alberto
Keywords: Microcrystalline cellulose Ionic liquids Hydrolysis Cellulose Acetates ioncell-f dissolution crystallinity
Abstract: A non-dissolving pretreatment consisting in the direct contact of cellulose and the ionic liquid tetra(n-butyl)phosphonium acetate, or its fluid mixtures with other phosphonium ionic liquids or with molecular liquids such as ethanol or DMSO, causes a reduction in the crystallinity of the popular microcrystalline cellulose-type Avicel PH-101 under mild conditions. At the same time, the degree of polymerization and the thermal stability of the pretreated Avicel remain essentially unaltered with respect to the untreated Avicel. The diminution of the crystallinity has been related to the increase of the reactivity of the pretreated Avicel samples via analysis of the kinetics of their enzymatic hydrolysis. For selected samples, this improved reactivity has been confirmed through their effective carboxymethylation under a simplified and milder reaction procedure.
Thematic Areas: Química Polymers and plastics Polymer science Medicina ii Materials chemistry Materiais Interdisciplinar Farmacia Engenharias iv Engenharias ii Ciências biológicas iii Ciências biológicas ii Ciências biológicas i Ciências agrárias i Ciência de alimentos Chemistry, organic Biotecnología Biomaterials Bioengineering Biochemistry & molecular biology Astronomia / física
licence for use: https://creativecommons.org/licenses/by/3.0/es/
Author's mail: alberto.puga@urv.cat
Author identifier: 0000-0003-4201-2635
Record's date: 2024-10-26
Papper version: info:eu-repo/semantics/publishedVersion
Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
Papper original source: Biomacromolecules. 23 (5): 1970-1980
APA: Pena, Carlos A; Puga, Alberto, V; Metlen, Andreas; Soto, Ana; Rodriguez, Hector (2022). Liquid Systems Based on Tetra(n-butyl)phosphonium Acetate for the Non-dissolving Pretreatment of a Microcrystalline Cellulose (Avicel PH-101). Biomacromolecules, 23(5), 1970-1980. DOI: 10.1021/acs.biomac.1c01683
Entity: Universitat Rovira i Virgili
Journal publication year: 2022
Publication Type: Journal Publications
Repositori URV