Counter-Anion Effect on the Properties of Anion-Conducting Polymer Electrolyte Membranes Prepared by Radiation-Induced Graft Polymerization

2013 ◽  
Vol 214 (15) ◽  
pp. 1756-1762 ◽  
Author(s):  
Hiroshi Koshikawa ◽  
Kimio Yoshimura ◽  
Warapon Sinnananchi ◽  
Tetsuya Yamaki ◽  
Masaharu Asano ◽  
...  
Keyword(s):  
Polymer Electrolyte ◽  
Conducting Polymer ◽  
Graft Polymerization ◽  
Polymer Electrolyte Membranes ◽  
Counter Anion ◽  
Anion Effect ◽  
Electrolyte Membranes ◽  
Radiation Induced

Positron Annihilation Lifetime Study of Graft-Type Fluorinated Polymer Electrolyte Membranes

2008 ◽  
Vol 607 ◽  
pp. 70-72 ◽  
Author(s):  
Shin-ichi Sawada ◽  
Atsuo Kawasuso ◽  
Masaki Maekawa ◽  
Akihiro Suzuki ◽  
Takayuki Terai ◽  
...  
Keyword(s):  
Polymer Electrolyte ◽  
Positron Annihilation ◽  
Free Volume ◽  
Sulfonic Acid ◽  
Graft Polymerization ◽  
Polymer Electrolyte Membranes ◽  
Positron Annihilation Lifetime ◽  
Electrolyte Membranes ◽  
Radiation Induced ◽  
Styrene Sulfonic Acid

Positron annihilation lifetime spectroscopy (PALS) measurements were performed on polymer electrolyte membranes (PEMs) synthesized by radiation-induced graft polymerization of styrene into crosslinked-polytetrafluoroethylene (cPTFE) films and subsequent sulfonation. The base cPTFE and polystyrene grafted films were also measured as references. The cPTFE based PEM was found to have free-volume holes with different radius of 0.28-0.30 nm and 0.44-0.45 nm. The larger holes may be located in PTFE amorphous regions, while the smaller ones are considered to exist in both PTFE crystallites and poly(styrene sulfonic acid) grafts containing no water.

Hydroxide-conducting polymer electrolyte membranes from aromatic ABA triblock copolymers

2014 ◽  
Vol 5 (7) ◽  
pp. 2208 ◽  
Author(s):  
Qing Li ◽  
Lei Liu ◽  
Qingqing Miao ◽  
Bangkun Jin ◽  
Ruke Bai
Keyword(s):  
Polymer Electrolyte ◽  
Conducting Polymer ◽  
Triblock Copolymers ◽  
Polymer Electrolyte Membranes ◽  
Electrolyte Membranes
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