scholarly journals Efficiency of hydrophobic phosphonium ionic liquids and DMSO as recyclable cellulose dissolution and regeneration media

RSC Advances ◽  
2017 ◽  
Vol 7 (28) ◽  
pp. 17451-17461 ◽  
Author(s):  
Ashley J. Holding ◽  
Arno Parviainen ◽  
Ilkka Kilpeläinen ◽  
Ana Soto ◽  
Alistair W. T. King ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Cellulose Dissolution ◽  
Solvent Systems ◽  
Phosphonium Ionic Liquids ◽  
Long Chain

Hydrophobic, long-chain tetraalkylphosphonium acetate salts (ionic liquids) were combined with DMSO and the feasibility of these solvent systems for cellulose dissolution and regeneration was studied.

The mechanism of toluene absorption by phosphonium ionic liquids with multiple sites

2021 ◽  
pp. 115501
Author(s):  
Liang Tan ◽  
Jiamei Zhu ◽  
Xiaodong He ◽  
Min Zhou ◽  
Shuangquan Zhang
Keyword(s):  
Ionic Liquids ◽  
Phosphonium Ionic Liquids

scholarly journals Synthesis, antibiotic structure–activity relationships, and cellulose dissolution studies of new room-temperature ionic liquids derived from lignin

2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Shihong Liu ◽  
Michael Gonzalez ◽  
Celine Kong ◽  
Scott Weir ◽  
Aaron M. Socha
Keyword(s):  
Antibacterial Activity ◽  
Ionic Liquids ◽  
Room Temperature ◽  
Oxidation Products ◽  
Cellulose Dissolution ◽  
Melting Points ◽  
E Coli ◽  
Alkyl Chains ◽  
Renewable Feedstocks ◽  
Commodity Chemicals

Abstract Background Ionic liquids (ILs) are promising pretreatment solvents for lignocellulosic biomass, but are largely prepared from petroleum precursors. Benzaldehydes from depolymerized lignin, such as vanillin, syringaldehyde, and 4-methoxy benzaldehyde, represent renewable feedstocks for the synthesis of ionic liquids. We herein report syntheses of novel lignin-derived ionic liquids, with extended N-alkyl chains, and examine their melting points, cellulose dissolution capacities, and toxicity profiles against Daphnia magna and E. coli strain 1A1. The latter organism has been engineered to produce isoprenol, a drop-in biofuel and precursor for commodity chemicals. Results The new N,N-diethyl and N,N-dipropyl methyl benzylammonium ILs were liquids at room temperature, showing 75–100 °C decreased melting points as compared to their N,N,N-trimethyl benzylammonium analog. Extension of N-alkyl chains also increased antibacterial activity threefold, while ionic liquids prepared from vanillin showed 2- to 4-fold lower toxicity as compared to those prepared from syringaldehyde and 4-methoxybenzaldehyde. The trend of antibacterial activity for anions of lignin-derived ILs was found to be methanesulfonate < acetate < hydroxide. Microcrystalline cellulose dissolution, from 2 to 4 wt% after 20 min at 100 °C, was observed in all new ILs using light microscopy and IR spectroscopy. Conclusions Ionic liquids prepared from H-, S- and G-lignin oxidation products provided differential cytotoxic activity against E. coli and D. magna, suggesting these compounds could be tailored for application specificity within a biorefinery.

Long-Chain Carboxylate Ionic Liquids Combining High Solubility and Low Viscosity for Light Hydrocarbon Separations

2017 ◽  
Vol 56 (25) ◽  
pp. 7336-7344 ◽  
Author(s):  
Yi Zhang ◽  
Xu Zhao ◽  
Qiwei Yang ◽  
Zhiguo Zhang ◽  
Qilong Ren ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Light Hydrocarbon ◽  
High Solubility ◽  
Low Viscosity ◽  
Long Chain

Grignard Reactions in Pyridinium and Phosphonium Ionic Liquids

2010 ◽  
Vol 2011 (5) ◽  
pp. 942-950 ◽  
Author(s):  
Leigh Ford ◽  
Farzad Atefi ◽  
Robert D. Singer ◽  
Peter J. Scammells
Keyword(s):  
Ionic Liquids ◽  
Grignard Reactions ◽  
Phosphonium Ionic Liquids

Interaction of phosphonium ionic liquids with borate esters at tribological interfaces

RSC Advances ◽  
2016 ◽  
Vol 6 (58) ◽  
pp. 53148-53161 ◽  
Author(s):  
Vibhu Sharma ◽  
Nicole Doerr ◽  
Ali Erdemir ◽  
Pranesh B. Aswath
Keyword(s):  
Ionic Liquids ◽  
Borate Ester ◽  
Borate Esters ◽  
Phosphonium Ionic Liquids

Chemical make-up of the tribofilms formed using phosphonium-phosphate IL and borate ester.

Aqueous Biphasic System Containing Long Chain Anion-Functionalized Ionic Liquids for High-Performance Extraction

2015 ◽  
Vol 3 (12) ◽  
pp. 3365-3372 ◽  
Author(s):  
Yuanbang Xie ◽  
Huabin Xing ◽  
Qiwei Yang ◽  
Zongbi Bao ◽  
Baogen Su ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
High Performance ◽  
Biphasic System ◽  
Aqueous Biphasic System ◽  
Aqueous Biphasic ◽  
Chain Anion ◽  
Long Chain

scholarly journals Basic Phosphonium Ionic Liquids as Wittig Reagents

ACS Omega ◽  
2017 ◽  
Vol 2 (6) ◽  
pp. 2901-2911 ◽  
Author(s):  
Dzmitry S. Firaha ◽  
Anna V. Gibalova ◽  
Oldamur Hollóczki
Keyword(s):  
Ionic Liquids ◽  
Phosphonium Ionic Liquids

Substituent effects on cellulose dissolution in imidazolium-based ionic liquids

Cellulose ◽  
2018 ◽  
Vol 25 (12) ◽  
pp. 6887-6900 ◽  
Author(s):  
Niwanthi Dissanayake ◽  
Vidura D. Thalangamaarachchige ◽  
Shelby Troxell ◽  
Edward L. Quitevis ◽  
Noureddine Abidi
Keyword(s):  
Ionic Liquids ◽  
Substituent Effects ◽  
Cellulose Dissolution
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