Thermal Stability, Complexing Behavior, and Ionic Transport of Polymeric Gel Membranes Based on Polymer PVdF-HFP and Ionic Liquid, [BMIM][BF4]

2013 ◽  
Vol 117 (3) ◽  
pp. 897-906 ◽  
Author(s):  
Shalu ◽  
S. K. Chaurasia ◽  
R. K. Singh ◽  
S. Chandra
Keyword(s):  
Thermal Stability ◽  
Ionic Liquid ◽  
Ionic Transport ◽  
Polymeric Gel ◽  
Gel Membranes

High Ionic Liquid Content Polymeric Gel Membranes: Preparation and Performance

2011 ◽  
Vol 44 (1) ◽  
pp. 39-45 ◽  
Author(s):  
Johannes Carolus Jansen ◽  
Karel Friess ◽  
Gabriele Clarizia ◽  
Jan Schauer ◽  
Pavel Izák
Keyword(s):  
Ionic Liquid ◽  
Liquid Content ◽  
Polymeric Gel ◽  
And Performance ◽  
Gel Membranes

High ionic liquid content polymeric gel membranes: Correlation of membrane structure with gas and vapour transport properties

2012 ◽  
Vol 415-416 ◽  
pp. 801-809 ◽  
Author(s):  
Karel Friess ◽  
Johannes Carolus Jansen ◽  
Fabio Bazzarelli ◽  
Pavel Izák ◽  
Veronika Jarmarová ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Transport Properties ◽  
Membrane Structure ◽  
Vapour Transport ◽  
Liquid Content ◽  
Polymeric Gel ◽  
Gel Membranes

scholarly journals Synthesis and Biological Evaluation of a Novel Glycidyl Metharcylate/Phaytic Acid-Based on Bagasse Xylan Composite Derivative

Polymers ◽  
2021 ◽  
Vol 13 (13) ◽  
pp. 2084
Author(s):  
Mingkun Li ◽  
Heping Li ◽  
Hongli Liu ◽  
Zhiming Zou ◽  
Chaoyu Xie
Keyword(s):  
Lung Cancer ◽  
Thermal Stability ◽  
Ionic Liquid ◽  
Molecular Docking ◽  
Phytic Acid ◽  
Biological Activities ◽  
Biological Evaluation ◽  
Potential Candidate ◽  
Reaction Conditions ◽  
Cell Proliferation Inhibition

The development of natural biomass materials with excellent properties is an attractive way to improve the application range of natural polysaccharides. Bagasse Xylan (BX) is a natural polysaccharide with various biological activities, such as antitumor, antioxidant, etc. Its physic-chemical and biological properties can be improved by functionalization. For this purpose, a novel glycidyl metharcylate/phytic acid based on a BX composite derivative was synthesized by a free radical polymerization technique with glycidyl metharcylate (GMA; GMABX) and further esterification with phytic acid (PA; GMABX-PA) in ionic liquid. The effects of the reaction conditions (i.e., temperature, time, initiator concentration, catalyst concentration, GMA concentration, PA concentration, mass of ionic liquid) on grafting rate(G), conversion rate(C) and degree of substitution(DS) are discussed. The structure of the composite material structure was confirmed by FTIR, 1H NMR and XRD. SEM confirmed the particle morphology of the composite derivative. The thermal stability of GMABX-PA was determined by TG-DTG. Molecular docking was further performed to study the combination mode of the GMABX-PA into the active site of two lung cancer proteins (5XNV, 2EB2) and a blood cancer protein (2M6N). In addition, tumor cell proliferation inhibition assays for BX, GMABX-PA were carried out using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetraz -olium bromide (MTT) method. The results showed that various reaction conditions exhibited favorable gradient curves, and that a maximum G of 56% for the graft copolymerization and a maximum DS of 0.267 can be achieved. The thermal stability was significantly improved, as demonstrated by the fact that there was still 60% residual at 800 °C. The molecular docking software generated satisfactory results with regard to the evaluated binding energy and combining sites. The inhibition ratio of GMABX-PA on NCI-H460 (lung cancer cells) reached 29.68% ± 4.45%, which is five times higher than that of BX. Therefore, the material was shown to be a potential candidate for biomedical applications as well as for use as a heat resistant material.

scholarly journals Leaching Chalcopyrite with an Imidazolium-Based Ionic Liquid and Bromide

Metals ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 183 ◽  
Author(s):  
Marcelo Rodríguez ◽  
Luís Ayala ◽  
Pedro Robles ◽  
Rossana Sepúlveda ◽  
David Torres ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Ionic Liquid ◽  
Acid Leaching ◽  
High Thermal Stability ◽  
Complexing Agent ◽  
Hydrogen Sulfate ◽  
Operational Conditions ◽  
Bromide Ions ◽  
Novel Applications ◽  
Ionic Liquid Concentration

The unique properties of ionic liquids (ILs) drive the growing number of novel applications in different industries. The main features of ILs are high thermal stability, recyclability, low flash point, and low vapor pressure. This study investigated pure chalcopyrite dissolution in the presence of the ionic liquid 1-butyl-3-methylimidazolium hydrogen sulfate, [BMIm]HSO4, and a bromide-like complexing agent. The proposed system was compared with acid leaching in sulfate media with the addition of chloride and bromide ions. The results demonstrated that the use of ionic liquid and bromide ions improved the chalcopyrite leaching performance. The best operational conditions were at a temperature of 90 °C, with an ionic liquid concentration of 20% and 100 g/L of bromide.

Improving CO2/N2separation performance using nonionic surfactant Tween containing polymeric gel membranes

RSC Advances ◽  
2015 ◽  
Vol 5 (7) ◽  
pp. 4947-4957 ◽  
Author(s):  
Liang-liang Dong ◽  
Chun-fang Zhang ◽  
Yao-yao Zhang ◽  
Yun-xiang Bai ◽  
Jin Gu ◽  
...  
Keyword(s):  
Nonionic Surfactant ◽  
Schematic Representation ◽  
Domain Identification ◽  
Polymeric Gel ◽  
Gel Membranes

Schematic representation of the microstructure of PEBA2533 and PEBA2533/Tween gel membranes. Domain identification: A = crystalline hard PA blocks, B = soft PTMO and amorphous hard PA blocks, C = dissolved Tween.

scholarly journals Thermochromism of Highly Luminescent Photopolymer Flexible Films Based On Eu (III) Salts Confined in Polysulfone

Materials ◽  
2020 ◽  
Vol 13 (23) ◽  
pp. 5394
Author(s):  
Mani Outis ◽  
João Paulo Leal ◽  
Maria Helena Casimiro ◽  
Bernardo Monteiro ◽  
Cláudia Cristina Lage Pereira
Keyword(s):  
Thermal Stability ◽  
Ionic Liquid ◽  
Melting Point ◽  
Quantum Yield ◽  
Thermal Behavior ◽  
Temperature Dependence ◽  
Strong Temperature Dependence ◽  
Host Matrix ◽  
Flexible Films ◽  
First Time

Here we discuss the influence of two different cations on the emissive properties of the highly emissive [Eu(fod)4]− anion. The studied Eu(III) salts were [C16Pyr][Eu(fod)4] (1), and the previously reported [Chol][Eu(fod)4]. C16Pyr stands for N-cetylpyridinium, Chol for cholinium and fod for 1,1,1,2,2,3,3-heptafluoro-7,7-dimethyloctane-4,6-dionate. 1 is classified as ionic liquid, with melting point close to 60 °C, and presented a luminescence quantum yield of (ϕ) 100%. Ultrabright emissive photopolymers were obtained for the first time using polysulfone as the host matrix. The films were prepared with incorporation of 10% (w/w) of 1 and [Chol][Eu(fod)4] in the polymeric matrix, which improved its thermal stability. Additionally, the luminescence of CholEu(fod)4/PSU presented a strong temperature dependence with a ratiometric thermal behavior.

scholarly journals Investigation of the Electrochemical and Thermal Stability of an Ionic Liquid Based Na0.6Co0.1Mn0.9O2/Na2.55V6O16 Sodium-Ion Full-Cell

2019 ◽  
Vol 166 (6) ◽  
pp. A944-A952 ◽  
Author(s):  
Minh Phuong Do ◽  
Pauline J. Fischer ◽  
Arun Nagasubramanian ◽  
Jan Geder ◽  
Fritz E. Kühn ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Ionic Liquid ◽  
Sodium Ion ◽  
Full Cell ◽  
Thermal Stability Of
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