Cation exchange membrane based on side chain grafted sulfonic acid with poly(vinylidene fluoride-co-hexafluoropropylene) for electro-electrodialysis of HIx mixture

2019 ◽  
Vol 580 ◽  
pp. 134-142 ◽  
Author(s):  
Arindam K. Das ◽  
Mani Bhushan ◽  
Vinod K. Shahi
Keyword(s):  
Cation Exchange ◽  
Sulfonic Acid ◽  
Vinylidene Fluoride ◽  
Cation Exchange Membrane ◽  
Side Chain ◽  
Poly Vinylidene Fluoride ◽  
Exchange Membrane

Structure and Morphology of PVDF-G-PAMPS Membrane

2011 ◽  
Vol 197-198 ◽  
pp. 1321-1324 ◽  
Author(s):  
Gui Bao Guo ◽  
Sheng Li An
Keyword(s):  
Fourier Transform ◽  
Infrared Spectroscopy ◽  
Sulfonic Acid ◽  
Proton Exchange Membrane ◽  
Vinylidene Fluoride ◽  
Proton Exchange ◽  
Pvdf Membrane ◽  
Structure And Morphology ◽  
Poly Vinylidene Fluoride ◽  
Exchange Membrane

A proton exchange membrane of blended poly (acrylamido-2- methylpropane sulfonic acid) (PAMPS) grafted onto modified poly (vinylidene fluoride) (PVDF) membrane (PVDF-g-PAMPS) was prepared. Fourier transform infrared spectroscopy is used to characterize changes of the membrane's microstructures after grafting. The morphology of the membrane's microstructures after grafting is studied by scanning electrolytic microscope.The results show that 2-acrylamido-2-methylpropane sulfonic acid is easily grafted into PVDF modified by Plain sodium silicate (Na4SiO4).

Studies on Preparation and Methanol Permeability of PVDF-g-PAMPS Membrane

2011 ◽  
Vol 335-336 ◽  
pp. 157-160 ◽  
Author(s):  
Jia Xu ◽  
Gui Bao Guo
Keyword(s):  
Sodium Silicate ◽  
Sulfonic Acid ◽  
Proton Exchange Membrane ◽  
Vinylidene Fluoride ◽  
Ammonium Persulfate ◽  
Proton Exchange ◽  
Methanol Permeability ◽  
Poly Vinylidene Fluoride ◽  
Methyl Pyrrolidone ◽  
Exchange Membrane

A proton exchange membrane of poly (vinylidene fluoride) grafted onto poly (2-acrylamido-2-methylpropane sulfonic acid) (PVDF-g-PAMPS) was prepared as follows: acrylamido-2-methylpropane sulfonic acid (AMPS) was first added to a N-Methyl pyrrolidone (NMP) solution containing poly (vinylidene fluoride) (PVDF) that was modified with plain sodium silicate. Ammonium persulfate was then added as an evocating agent and PAMPS was directly grafted onto the PVDF that was modified with plain sodium silicate. The influences of AMPS contents on the proton conductivity and methanol permeability were studied. The results showed that AMPS is easily grafted into PVDF modified by Plain sodium silicate (Na4SiO4), with increasing of the content of 2-acrylamido-2-methylpropane sulfonic acid, the methanol permeability became large gradually of PVDF-g-PAMPS membranes was increased.

Studies on Preparation and Properties of PVDF-g-PAMPS Membrane

2011 ◽  
Vol 311-313 ◽  
pp. 244-247 ◽  
Author(s):  
Yu Sheng Li ◽  
Gui Bao Guo ◽  
Sheng Li An
Keyword(s):  
Mechanical Properties ◽  
Proton Conductivity ◽  
Sodium Silicate ◽  
Sulfonic Acid ◽  
Proton Exchange Membrane ◽  
Vinylidene Fluoride ◽  
Ammonium Persulfate ◽  
Proton Exchange ◽  
Poly Vinylidene Fluoride ◽  
Exchange Membrane

A proton exchange membrane of poly (vinylidene fluoride) grafted onto poly (2-acrylamido-2-methylpropane sulfonic acid) (PVDF-g-PAMPS) was prepared as follows: acrylamido-2-methylpropane sulfonic acid (AMPS) was first added to a N-Methyl pyrrolidone (NMP) solution containing poly (vinylidene fluoride) (PVDF) that was modified with plain sodium silicate. Ammonium persulfate was then added as an evocating agent and PAMPS was directly grafted onto the PVDF that was modified with plain sodium silicate. The influences of AMPS contents on the proton conductivity and mechanical properties were studied. The results showed that AMPS is easily grafted into PVDF modified by Plain sodium silicate (Na4SiO4) and mechanical properties were improved, with increasing of the content of 2-acrylamido-2-methylpropane sulfonic acid, the proton conductivity of PVDF-g-PAMPS membranes was increased.

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