Preparation, Properties, and Characterization of Polymer Electrolyte Membranes Based on Poly(1-vinyl-1,2,4 triazole) and Poly(styrene sulfonic acid)

2009 ◽  
Vol 156 (10) ◽  
pp. B1112 ◽  
Author(s):  
Ayşe Aslan ◽  
Ünal Şen ◽  
Ayhan Bozkurt
Keyword(s):  
Polymer Electrolyte ◽  
Sulfonic Acid ◽  
Polymer Electrolyte Membranes ◽  
Properties And Characterization ◽  
Electrolyte Membranes ◽  
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.

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
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