scholarly journals Preparation of Heat- and Alkali-resistant Anion-exchange Membranes by Electron-beam-induced Graft Polymerization of Bromo-butyl Styrene onto Polyethylene Film

MEMBRANE ◽  
2010 ◽  
Vol 35 (6) ◽  
pp. 305-310 ◽  
Author(s):  
Kohei Miyazaki ◽  
Nobuyoshi Shoji ◽  
Yuki Asari ◽  
Kazuyoshi Miyoshi ◽  
Daisuke Umeno ◽  
...  
Keyword(s):  
Electron Beam ◽  
Anion Exchange ◽  
Graft Polymerization ◽  
Polyethylene Film ◽  
Anion Exchange Membranes

Cation and Anion Exchange Membranes Prepared by Radiation-Induced Graft Polymerization for Application in Electrodialysis

2014 ◽  
Vol 881-883 ◽  
pp. 1157-1160 ◽  
Author(s):  
Jin Hua Chen ◽  
Asano Masaharu ◽  
Yasunari Maekawa
Keyword(s):  
Aqueous Solution ◽  
Anion Exchange ◽  
Graft Polymerization ◽  
Exchange Capacity ◽  
Anion Exchange Membranes ◽  
Ion Exchange Capacity ◽  
Electrodialysis Cell ◽  
Radiation Induced ◽  
Poly Ethylene ◽  
Percent Removal

Cation and anion exchange membranes were prepared by radiation-induced graft polymerization of ethyl styrenesulfonate and chloromethyl styrene, respectively, onto poly (ethylene-alt-tetrafluoroethylene) (ETFE) films, followed by hydrolysis in the former case and quaternization in the latter case. The degree of grafting as well as the ion exchange capacity (IEC) and the conductivity of the prepared membranes were investigated. Furthermore, the cation and anion exchange membranes were tested in an electrodialysis cell using CsNO3 aqueous solution in the dilute compartment. It was found that the high-IEC membranes enhanced the electrodialysis speed, while the low-IEC membranes showed the high percent removal.

Hydrophobic Effect on Alkaline Stability of Graft Chains in Ammonium‐type Anion Exchange Membranes Prepared by Radiation‐Induced Graft Polymerization

2021 ◽  
Vol 6 (33) ◽  
pp. 8879-8888
Author(s):  
Takashi Hamada ◽  
Yue Zhao ◽  
Kimio Yoshimura ◽  
Aurel Radulescu ◽  
Kenji Ohwada ◽  
...  
Keyword(s):  
Anion Exchange ◽  
Graft Polymerization ◽  
Hydrophobic Effect ◽  
Anion Exchange Membranes ◽  
Alkaline Stability ◽  
Radiation Induced

scholarly journals An optimised synthesis of high performance radiation-grafted anion-exchange membranes

2017 ◽  
Vol 19 (3) ◽  
pp. 831-843 ◽  
Author(s):  
Lianqin Wang ◽  
Emanuele Magliocca ◽  
Emma L. Cunningham ◽  
William E. Mustain ◽  
Simon D. Poynton ◽  
...  
Keyword(s):  
Electron Beam ◽  
Anion Exchange ◽  
High Performance ◽  
Anion Exchange Membranes ◽  
Absorbed Doses

The improved synthesis of radiation-grafted anion-exchange membranes (AEM) using water as a diluent and with reduced electron-beam absorbed doses and monomer amounts.

Polymeric materials as anion-exchange membranes for alkaline fuel cells

2011 ◽  
Vol 36 (11) ◽  
pp. 1521-1557 ◽  
Author(s):  
Guillaume Couture ◽  
Ali Alaaeddine ◽  
Frédéric Boschet ◽  
Bruno Ameduri
Keyword(s):  
Fuel Cells ◽  
Anion Exchange ◽  
Polymeric Materials ◽  
Anion Exchange Membranes ◽  
Alkaline Fuel Cells

High‐capacity multimodal anion‐exchange membranes for polishing of therapeutic proteins

2021 ◽  
Author(s):  
Joshua Osuofa ◽  
Daniel Henn ◽  
Jinxiang Zhou ◽  
Anna Forsyth ◽  
Scott M. Husson
Keyword(s):  
Anion Exchange ◽  
Therapeutic Proteins ◽  
High Capacity ◽  
Anion Exchange Membranes

scholarly journals Innovative BPPO Anion Exchange Membranes Formulation Using Diffusion Dialysis-Enhanced Acid Regeneration System

Membranes ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 311
Author(s):  
Muhammad Imran Khan ◽  
Majeda Khraisheh ◽  
Fares AlMomani
Keyword(s):  
Anion Exchange ◽  
Room Temperature ◽  
Feed Solution ◽  
Exchange Capacity ◽  
Anion Exchange Membranes ◽  
Regeneration System ◽  
Waste Streams ◽  
Acid Recovery ◽  
Aqueous Waste ◽  
Diffusion Dialysis

Recycling of acid from aqueous waste streams is crucial not only from the environmental point of view but also for maturing the feasible method (diffusion dialysis). Anion exchange membrane (AEM)–based diffusion dialysis process is one of the beneficial ways to recover acid from aqueous waste streams. In this article, the synthesis of a series of brominated poly (2, 6–dimethyl-1, 4–phenylene oxide) (BPPO)-based anion exchange membranes (AEMs) through quaternization with triphenylphosphine (TPP) were reported for acid recovery via diffusion dialysis process. The successful synthesis of the prepared membranes was confirmed by Fourier transform infrared (FTIR) spectroscopy. The as-synthesized anion exchange membranes represented water uptake (WR) of 44 to 66%, ion exchange capacity of (IEC) of 1.22 to 1.86 mmol/g, and linear swelling ratio (LSR) of 8 to 20%. They exhibited excellent thermal, mechanical, and acid stability. They showed homogeneous morphology. The acid recovery performance of the synthesized AEMs was investigated in a two compartment stack using simulated mixture of HCl and FeCl2 as feed solution at room temperature. For the synthesized anion exchange membranes TPP–43 to TPP–100, the diffusion dialysis coefficient of acid (UH+) was in the range of 6.7 to 26.3 (10−3 m/h) whereas separation factor (S) was in the range of 27 to 49 at 25 °C. Obtained results revealed that diffusion dialysis performance of the synthesized AEMs was higher than the commercial membrane DF–120B (UH+ = 0.004 m/h, S = 24.3) at room temperature. It showed that the prepared AEMs here could be excellent candidates for the diffusion dialysis process.

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