Articles producció científica> Enginyeria Química

Liquid Systems Based on Tetra(n-butyl)phosphonium Acetate for the Non-dissolving Pretreatment of a Microcrystalline Cellulose (Avicel PH-101)

  • Identification data

    Identifier: imarina:9261807
    Authors:
    Pena, Carlos APuga, Alberto, VMetlen, AndreasSoto, AnaRodriguez, Hector
    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.
  • Others:

    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
    Link to the original source: https://pubs.acs.org/doi/10.1021/acs.biomac.1c01683
    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
    Article's DOI: 10.1021/acs.biomac.1c01683
    Entity: Universitat Rovira i Virgili
    Journal publication year: 2022
    Publication Type: Journal Publications
  • Keywords:

    Biochemistry & Molecular Biology,Bioengineering,Biomaterials,Chemistry, Organic,Materials Chemistry,Polymer Science,Polymers and Plastics
    Microcrystalline cellulose
    Ionic liquids
    Hydrolysis
    Cellulose
    Acetates
    ioncell-f
    dissolution
    crystallinity
    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
  • Documents:

  • Cerca a google

    Search to google scholar