Acrylate and Methacrylate Guanidine-Ionic Liquids for Dissolution of Cellulose

2018 ◽  
Vol 935 ◽  
pp. 45-48
Author(s):  
S.S. Khashirova ◽  
Azamat A. Zhansitov ◽  
Zalina Yu. Isupova ◽  
S.A. Elcheparova ◽  
S.Yu. Khashirova
Keyword(s):  
Aqueous Solution ◽  
Ionic Liquids ◽  
Cellulose Solvent ◽  
Dialdehyde Cellulose ◽  
Direct Dissolution ◽  
First Time

It was shown for the first time that guanidine acrylate and methacrylate can act as ionic liquids for direct dissolution of cellulose (the solubility of dialdehyde cellulose is 27 % at the temperature of 60 °C). The conditions for the use of new ionic liquids as a dialdehyde cellulose solvent are found out: the temperature (60 °C), concentration of aqueous solution of acrylate (methacrylate) guanidine (1 mol/L).

Mapping the “Extra Solvent Power, ESP” of Ionic Liquids for Monomers, Polymers and Globular Nanoparticles

2017 ◽  
Author(s):  
Jose A. Pomposo
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Linear Polymers ◽  
Green Solvents ◽  
Ionic Polymers ◽  
First Time ◽  
Solvent Power

Understanding the miscibility behavior of ionic liquid (IL) / monomer, IL / polymer and IL / nanoparticle mixtures is critical for the use of ILs as green solvents in polymerization processes, and to rationalize recent observations concerning the superior solubility of some proteins in ILs when compared to standard solvents. In this work, the most relevant results obtained in terms of a three-component Flory-Huggins theory concerning the “Extra Solvent Power, ESP” of ILs when compared to traditional non-ionic solvents for monomeric solutes (case I), linear polymers (case II) and globular nanoparticles (case III) are presented. Moreover, useful ESP maps are drawn for the first time for IL mixtures corresponding to case I, II and III. Finally, a potential pathway to improve the miscibility of non-ionic polymers in ILs is also proposed.

scholarly journals COSMO-RS prediction and experimental verification of 1,5-pentanediamine extraction from aqueous solution by ionic liquids

2020 ◽  
Author(s):  
Chenhao Jiang ◽  
Hongye Cheng ◽  
Zexian Qin ◽  
Ruizhuan Wang ◽  
Lifang Chen ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Ionic Liquids ◽  
Experimental Verification

Probing the Transport of Ionic Liquids in Aqueous Solution through Nanopores

2011 ◽  
Vol 2 (18) ◽  
pp. 2331-2336 ◽  
Author(s):  
Niraj Modi ◽  
Pratik Raj Singh ◽  
Kozhinjampara R. Mahendran ◽  
Robert Schulz ◽  
Mathias Winterhalter ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Ionic Liquids

Effect and mixing of counter anions at the surface of aqueous solution of imidazolium-based ionic liquids

2013 ◽  
Vol 427 ◽  
pp. 26-32 ◽  
Author(s):  
Huihui Li ◽  
Yosuke Imai ◽  
Takanori Takiue ◽  
Hiroki Matsubara ◽  
Makoto Aratono
Keyword(s):  
Aqueous Solution ◽  
Ionic Liquids

Self-organization of imidazolium ionic liquids in aqueous solution

2008 ◽  
Vol 329 (3) ◽  
pp. 125-133 ◽  
Author(s):  
Justyna Łuczak ◽  
Jan Hupka ◽  
Jorg Thöming ◽  
Christian Jungnickel
Keyword(s):  
Aqueous Solution ◽  
Ionic Liquids ◽  
Self Organization ◽  
Imidazolium Ionic Liquids

scholarly journals Aggregation Behavior and Antimicrobial Activity of Ester-Functionalized Imidazolium- and Pyridinium-Based Ionic Liquids in Aqueous Solution

Langmuir ◽  
2013 ◽  
Vol 29 (8) ◽  
pp. 2536-2545 ◽  
Author(s):  
M. Teresa Garcia ◽  
Isabel Ribosa ◽  
Lourdes Perez ◽  
Angeles Manresa ◽  
Francesc Comelles
Keyword(s):  
Aqueous Solution ◽  
Antimicrobial Activity ◽  
Ionic Liquids ◽  
Aggregation Behavior

scholarly journals Promising biocompatible hydrogels of crosslinked polyelectrolytes for biomedical applications

2017 ◽  
Vol 3 (2) ◽  
pp. 695-698
Author(s):  
Andreas Brietzke ◽  
Christian von der Ehe ◽  
Sabine Illner ◽  
Claudia Matschegewski ◽  
Niels Grabow ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Ionic Liquids ◽  
Cell Viability ◽  
Biomedical Applications ◽  
High Potential ◽  
Cell Viability Assay ◽  
Mouse Fibroblasts ◽  
Viability Assay ◽  
Intelligent Implant ◽  
L929 Mouse

AbstractFor the development of intelligent implant systems hydrogels (HG) from crosslinked ionic liquids feature a high potential to be utilised as a drug depot. Biocompatibility of the HGs is one key prerequisite for biomedical applications. HGs were polymerised from a variety of different ionic monomers based on methacrylate, methacrylamide, styrene or vinyl imidazolium derivatives in aqueous solution. N,N'-methylenebisacrylamide was used as crosslinker. CellQuanti-Blue™ Cell Viability Assay Kit was implemented to proof viability of L929 mouse fibroblasts. The predominant part of the HG eluates generated only a marginal reduction of less than 15% cell viability at 100% eluate concentration. This underlines the excellent suitability of these HGs for biomedical applications and revealed some promising candidates for the development of drug depots for implants.

scholarly journals Synthesis of cobalt nanowires in aqueous solution under an external magnetic field

2016 ◽  
Vol 7 ◽  
pp. 990-994 ◽  
Author(s):  
Xiaoyu Li ◽  
Lijuan Sun ◽  
Hu Wang ◽  
Kenan Xie ◽  
Qin Long ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Aqueous Solution ◽  
External Magnetic Field ◽  
Room Temperature ◽  
Magnetic Measurements ◽  
Chemical Reduction ◽  
Average Diameter ◽  
Firm Structure ◽  
Cobalt Nanowires ◽  
First Time

In contrast to the majority of related experiments, which are carried out in organic solvents at high temperatures and pressures, cobalt nanowires were synthesized by chemical reduction in aqueous solution with the assistance of polyvinylpyrrolidone (PVP) as surfactant under moderate conditions for the first time, while an external magnetic field of 40 mT was applied. Uniform linear cobalt nanowires with relatively smooth surfaces and firm structure were obtained and possessed an average diameter of about 100 nm with a coating layer of PVP. By comparison, the external magnetic field and PVP were proven to have a crucial influence on the morphology and the size of the synthesized cobalt nanowires. The prepared cobalt nanowires are crystalline and mainly consist of cobalt as well as a small amount of platinum. Magnetic measurements showed that the resultant cobalt nanowires were ferromagnetic at room temperature. The saturation magnetization (M s) and the coercivity (H c) were 112.00 emu/g and 352.87 Oe, respectively.

Immobilizing AgPd alloy on Vulcan XC-72 carbon: a novel catalyst for highly efficient hydrogen generation from formaldehyde aqueous solution

RSC Advances ◽  
2016 ◽  
Vol 6 (107) ◽  
pp. 105638-105643 ◽  
Author(s):  
Shutao Gao ◽  
Tao Feng ◽  
Qiuhua Wu ◽  
Cheng Feng ◽  
Ningzhao Shang ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Room Temperature ◽  
Hydrogen Generation ◽  
Bimetallic Catalyst ◽  
Highly Efficient ◽  
Novel Catalyst ◽  
First Time

A novel bimetallic catalyst, AgPd nanoalloy supported on Vulcan XC-72 carbon (AgPd@C-72), has been successfully fabricated and used for catalyzing H2 generation from formaldehyde aqueous solution at room temperature for the first time.

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