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Irregular solution thermodynamics of wood pulp in the superbase ionic liquid [-TBDH][AcO]

RSC advances, 2020-11, Vol.1 (69), p.422-4223 [Tạp chí có phản biện]

This journal is © The Royal Society of Chemistry. ;Copyright Royal Society of Chemistry 2020 ;This journal is © The Royal Society of Chemistry 2020 The Royal Society of Chemistry ;ISSN: 2046-2069 ;EISSN: 2046-2069 ;DOI: 10.1039/d0ra08892g ;PMID: 35516785

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  • Nhan đề:
    Irregular solution thermodynamics of wood pulp in the superbase ionic liquid [-TBDH][AcO]
  • Tác giả: Driver, Gordon W ; Kilpeläinen, Ilkka A
  • Chủ đề: Activity coefficients ; Chemistry ; Ionic liquids ; Ions ; Solvation ; Solvents ; Thermodynamics ; Wood pulp
  • Là 1 phần của: RSC advances, 2020-11, Vol.1 (69), p.422-4223
  • Mô tả: Knowledge of solution thermodynamics is fundamental for solution control and solvent selection processes. Herein, experimentally determined thermodynamic quantities for solutions of wood pulp (hardwood dissolving pulp, i.e. cellulose) in [ m -TBDH][AcO] are presented. Model-free activities ( a i,j ) and associated mass fraction ( w i,j ) activity coefficients ( Ω i,j ), are determined to quantify inherent solution non-ideality . Access to the Gibbs energy of mixing, G mix , in combination with associated partial molar thermodynamic quantities, reveal strong enthalpically favourable (exothermic) interactions due to solvent-j and solute-i contact-encounters. Onset of an entropy driven phase instability appears at increased temperatures as excess entropic contributions dominate solvation character of the irregular solutions formed. Thermochemical analysis of cellulose dissolution character in the superbase containing protic ionic liquid [ m -TBDH][AcO] reveals lower critical solution temperature (LCST) behaviour.
  • Nơi xuất bản: England: Royal Society of Chemistry
  • Ngôn ngữ: English
  • Số nhận dạng: ISSN: 2046-2069
    EISSN: 2046-2069
    DOI: 10.1039/d0ra08892g
    PMID: 35516785
  • Nguồn: DOAJ Directory of Open Access Journals
    PubMed Central
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