Permeation and sorption properties of CO2-selective blend membranes based on polyvinyl alcohol (PVA) and 1-ethyl-3-methylimidazolium dicyanamide ([EMIM][DCA]) ionic liquid for effective CO2/H2 separation

2020 ◽  
Vol 597 ◽  
pp. 117623 ◽  
Author(s):  
Martina Klepić ◽  
Kateřina Setničková ◽  
Marek Lanč ◽  
Michal Žák ◽  
Pavel Izák ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Polyvinyl Alcohol ◽  
Sorption Properties ◽  
Blend Membranes

Preparation, Characterization and Biocompatibility of Regenerated Cellulose/PVA Blend Membranes in 1-Allyl-3-Methyimidazolium Chloride

2011 ◽  
Vol 179-180 ◽  
pp. 1108-1111 ◽  
Author(s):  
Yun Lu ◽  
Yi Xing Liu ◽  
Hai Peng Yu ◽  
Qing Feng Sun
Keyword(s):  
Ionic Liquid ◽  
Phase Separation ◽  
Polyvinyl Alcohol ◽  
Regenerated Cellulose ◽  
Cellulose Membrane ◽  
Sem Images ◽  
Pure Cellulose ◽  
Blend Membranes

Regenerated cellulose/polyvinyl alcohol (PVA) blend membranes were prepared from a solution of cellulose and PVA in an ionic liquid of 1-allyl-3-methyimidazolium chloride (AMImCl). SEM images showed that the phase separation on the mixture was severely formed when the content of PVA was higher than 10% by volume. However, when the content of PVA in the mixture was lower than 6%, the cellulose and PVA were well-distributed. The regenerated blend membranes using the AMImCl presenting reasonable crystallinity were superior to those of regenerated pure cellulose membrane. In conclusion, the compatible properties of blend membranes from regenerated cellulose/PVA (6%) were improved and the blend membranes kept original biodegradability.

scholarly journals Synthesis and study of sorption properties of polyvinyl alcohol (PVA)-based hybrid materials

2019 ◽  
Vol 144 ◽  
pp. 104364 ◽  
Author(s):  
Julien Muller ◽  
Benedicte Prelot ◽  
Jerzy Zajac ◽  
Sophie Monge
Keyword(s):  
Polyvinyl Alcohol ◽  
Hybrid Materials ◽  
Sorption Properties

Effect of the bis-imidazolium-based poly(ionic liquid) on the microstructure and the properties of AAEMs based on polyvinyl alcohol

RSC Advances ◽  
2016 ◽  
Vol 6 (30) ◽  
pp. 25311-25318 ◽  
Author(s):  
Yi Yang ◽  
Na Sun ◽  
Panpan Sun ◽  
Liqiang Zheng
Keyword(s):  
Ionic Liquid ◽  
Polyvinyl Alcohol ◽  
Ionic Channel ◽  
Poly Ionic Liquid

The conductivity of AAEMs can be improved by building the ionic channel based on bis-imidazolium-based poly(ionic liquid).

Properties of novel polyvinyl alcohol/cellulose nanocrystals/silver nanoparticles blend membranes

2013 ◽  
Vol 98 (2) ◽  
pp. 1573-1577 ◽  
Author(s):  
Xu Xu ◽  
Yi-Qin Yang ◽  
Ying-Ying Xing ◽  
Jiu-Fang Yang ◽  
Shi-Fa Wang
Keyword(s):  
Silver Nanoparticles ◽  
Polyvinyl Alcohol ◽  
Cellulose Nanocrystals ◽  
Blend Membranes

Influence of Multiwall Carbon Nanotube on Polyethersulfone/ Polyvinyl Alcohol Blend Membranes

2014 ◽  
Vol 67 (2) ◽  
Author(s):  
Nur Farahah Mohd Khairuddin ◽  
Ani Idris ◽  
Iqbal Ahmed ◽  
Noordin Mohd Yusof
Keyword(s):  
Molecular Weight ◽  
Contact Angle ◽  
Carbon Nanotube ◽  
Polyvinyl Alcohol ◽  
Water Flux ◽  
Multiwall Carbon Nanotube ◽  
Flux Rate ◽  
Molecular Weights ◽  
Blend Membranes ◽  
Multiwall Carbon

This paper investigates the influence of multiwall carbon nanotube (MWCNT) on the morphology and properties of polyethersulfone (PES) and polyvinyl alcohol (PVA) blend membranes. Several membranes were prepared by blending 0.5 wt% MWCNT , 18%wt PES and 1.5wt% PVA of various molecular weights (60, 145 and 200 kDa) in  dimethyl acetate (DMAC) solvent. The membranes were then evaluated in terms of its morphology, contact angle, water flux rate and porosity. The results revealed that MWCNT nanoparticles have decreased the contact angle and increased the flux rate of PES/PVA blend membranes. The presence of MWCNT in the PES/PVA membranes have promoted the formation of fingerlike pores in the membranes structure and thus increased the porosity of the membranes. Besides that, the use of higher molecular weight PVA helped to reduce the contact angle of the membranes reflecting to their hydrophilic nature. However, the use of lower molecular weight PVA was found to enhance the increased of flux rate and porosity of the membrane.

Antibacterial and environmentally friendly chitosan/polyvinyl alcohol blend membranes for air filtration

2018 ◽  
Vol 198 ◽  
pp. 241-248 ◽  
Author(s):  
Zhen Wang ◽  
Feng Yan ◽  
Hongchang Pei ◽  
Jianxin Li ◽  
Zhenyu Cui ◽  
...  
Keyword(s):  
Polyvinyl Alcohol ◽  
Environmentally Friendly ◽  
Air Filtration ◽  
Blend Membranes
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