Performance of membrane electrode assemblies based on proton exchange membranes prepared by pre-irradiation induced grafting

Modification of polytetrafluoroethylene porous membranes by electron beam initiated surface grafting of binary monomers

“…As fully fluorinated polymer material, polytetrafluoroethylene (PTFE) has impressive properties such as high chemical resistance, low surface energy, good thermal stability, low dielectric constant, low water adsorption and biological inertness in the human body [1][2][3][4]. It has been widely used in electronics, chemical, medical, architecture and energy industries.…”

“…So far, a number of monomers have been grafted onto the surface of PTFE, such as styrene, acrylamide, Nisopropylacrylamide and acrylic acid [1]. The mainly purpose of grafting styrene is to sulfonate it and introduce sulfonate group to PTFE [2,[24][25][26]. Lot of report about the irradiation grafting of PTFE had studied the sulfonate PTFE membranes which were used as proton exchange membrane or anion-exchange membrane [2,[27][28][29].…”

“…The mainly purpose of grafting styrene is to sulfonate it and introduce sulfonate group to PTFE [2,[24][25][26]. Lot of report about the irradiation grafting of PTFE had studied the sulfonate PTFE membranes which were used as proton exchange membrane or anion-exchange membrane [2,[27][28][29]. However, grafting methods above mentioned alwaysrequired complex pre-treat processes [12] and successive reaction.…”

Modified Sulfonated Poly(arylene ether sulfone) Membranes Prepared via a Radiation Grafting Method for Fuel Cell Application

“…[1][2][3][4][5][6][7][8] Various recent studies have also utilized radiation modification techniques to prepare proton exchange membranes (PEMs). 3,[9][10][11][12] PEMs are membranes which have the ability to selectively transfer protons generated by electrochemical reactions from the anode to the cathode in fuel cells. For this purpose, polymers having strong acidic functional group as proton carriers (e.g.…”

Synthesis and characterization of PEFC membranes based on fluorinated-polymer-alloy using pre-soft-EB grafting method

“…It was suggested that the pre-irradiation grafting method should be powerful tools to fabricate low cost PEMs [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21]. For examples, in the Scherer's group at Paul Scherer Institute (PSI) [3,4,7,12] and Nasef's group at Malaysia University [5,8], their groups have studied PEMs based on non-crosslinked tetrafluoroethylene-co-hexafluoropropylene (FEP) for PEFC.…”