Cellulose triacetate synthesis via one-pot organocatalytic transesterification and delignification of pretreated bagasse. Issue 39 (13th June 2018)

• Record Type: Journal Article
• Authors: Suzuki, Shiori; Shibata, Yoshiki; Hirose, Daisuke; Endo, Takatsugu; Ninomiya, Kazuaki; Kakuchi, Ryohei; Takahashi, Kenji
• Is Part Of: RSC advances. Volume 8:Issue 39(2018)
• Page Start: 21768
• Page End: 21776
• Publication Date: 2018-06-13
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/c8ra03859g
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : Cellulose triacetate was synthesised by the transesterification reaction of mild acid-pretreated lignocellulosic biomass with a stable acetylating reagent in an ionic liquid, EmimOAc, which enabled the dissolution of lignocellulose as well as the organocatalytic reaction. Abstract : Cellulose triacetate was synthesised by the transesterification reaction of mild acid-pretreated lignocellulosic biomass with a stable acetylating reagent (isopropenyl acetate, IPA) in an ionic liquid (1-ethyl-3-methylimidazolium acetate, EmimOAc) which enabled the dissolution of lignocellulose as well as the organocatalytic reaction. The homogeneous acetylation of pretreated sugar-cane bagasse was carried out under mild conditions (80 °C, 30 min), and the subsequent reprecipitation processes led to enriched cellulose triacetate with a high degree of substitution (DS; 2.98) and glucose purity (∼90%) along with production of lignin acetate.