Transesterification of cellulose with unactivated esters in superbase-acid conjugate ionic liquids

Autor: Aleksandar R. Todorov, Alistair W. T. King, Ilkka Kilpeläinen
Přispěvatelé: Department of Chemistry, Synthesis and Analysis, Helsinki Institute of Sustainability Science (HELSUS), Doctoral Programme in Chemistry and Molecular Sciences
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Todorov, A R, King, A W T & Kilpeläinen, I 2023, ' Transesterification of cellulose with unactivated esters in superbase-acid conjugate ionic liquids ', RSC Advances, vol. 13, no. 9, pp. 5983-5992 . https://doi.org/10.1039/d2ra08186e
DOI: 10.1039/d2ra08186e
Popis: A sustainable homogeneous transesterification protocol utilizing the superbase ionic liquid [mTBNH][OAc] and unactivated methyl esters has been developed for the preparation of cellulose esters with controllable degree of substitution. [mTBNH][OAc] shows excellent recyclability with a high recovery of sufficient purity for repeated use. This reaction media allows for cellulose transesterification reactions not only using activated or cyclic esters, but also with unactivated methyl esters, which extends the substrate and application scope. Furthermore, the solubility properties of the prepared cellulose materials were tested and some intrinsic trends were observed at low degrees of substitution.
Databáze: OpenAIRE