scholarly journals DMFC Performance of Polymer Electrolyte Membranes Prepared from a Graft-Copolymer Consisting of a Polysulfone Main Chain and Styrene Sulfonic Acid Side Chains

Energies ◽  
2016 ◽  
Vol 9 (8) ◽  
pp. 658 ◽  
Author(s):  
Nobutaka Endo ◽  
Yoshiaki Ogawa ◽  
Kohei Ukai ◽  
Yuriko Kakihana ◽  
Mitsuru Higa
Keyword(s):  
Polymer Electrolyte ◽  
Graft Copolymer ◽  
Sulfonic Acid ◽  
Main Chain ◽  
Polymer Electrolyte Membranes ◽  
Side Chains ◽  
Electrolyte Membranes ◽  
Styrene Sulfonic Acid

Polymer electrolyte membranes based on poly(phenylene ether)s with sulfonic acid via long alkyl side chains

2013 ◽  
Vol 1 (37) ◽  
pp. 11389 ◽  
Author(s):  
Xuan Zhang ◽  
Li Sheng ◽  
Teruaki Hayakawa ◽  
Mitsuru Ueda ◽  
Tomoya Higashihara
Keyword(s):  
Polymer Electrolyte ◽  
Sulfonic Acid ◽  
Polymer Electrolyte Membranes ◽  
Side Chains ◽  
Alkyl Side Chains ◽  
Electrolyte Membranes

Characterization of cation-exchange membranes prepared from a graft-copolymer consisting of a polysulfone main chain and styrene sulfonic acid side chains

2014 ◽  
Vol 129 ◽  
pp. 120-126 ◽  
Author(s):  
Yuriko Kakihana ◽  
Yoshiaki Ogawa ◽  
Keita Takamura ◽  
Naoki Kawamura ◽  
Ryosuke Hara ◽  
...  
Keyword(s):  
Cation Exchange ◽  
Graft Copolymer ◽  
Sulfonic Acid ◽  
Main Chain ◽  
Side Chains ◽  
Styrene Sulfonic Acid

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.

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