Preparation of polymer electrolyte membranes based on poly(phenylene oxide) with different side chain lengths of phosphonic acid

2019 ◽  
Vol 57 (11) ◽  
pp. 1180-1188 ◽  
Author(s):  
Cheong‐Min Min ◽  
Su‐Bin Lee ◽  
Min‐Kyoon Ahn ◽  
Joseph Jang ◽  
Jae‐Suk Lee
Keyword(s):  
Polymer Electrolyte ◽  
Phosphonic Acid ◽  
Polymer Electrolyte Membranes ◽  
Side Chain ◽  
Phenylene Oxide ◽  
Electrolyte Membranes ◽  
Chain Lengths

Polymer electrolyte membranes based on polystyrenes with phosphonic acid via long alkyl side chains

2012 ◽  
Vol 50 (20) ◽  
pp. 4334-4340 ◽  
Author(s):  
Youko Tamura ◽  
Li Sheng ◽  
Satoshi Nakazawa ◽  
Tomoya Higashihara ◽  
Mitsuru Ueda
Keyword(s):  
Polymer Electrolyte ◽  
Phosphonic Acid ◽  
Polymer Electrolyte Membranes ◽  
Side Chains ◽  
Alkyl Side Chains ◽  
Electrolyte Membranes

scholarly journals Synthesis of cross-linked comb-type polysiloxane for polymer electrolyte membranes

e-Polymers ◽  
2012 ◽  
Vol 12 (1) ◽  
Author(s):  
Omar Mukbaniani ◽  
Jimsher Aneli ◽  
Tamara Tatrishvili ◽  
Eliza Markarashvili ◽  
Maia Chigvinadze ◽  
...  
Keyword(s):  
Polymer Electrolyte ◽  
Sol Gel ◽  
Gel Permeation Chromatography ◽  
Catalytic Amount ◽  
Polymer Electrolyte Membranes ◽  
Solid Polymer ◽  
Side Chain ◽  
Differential Scanning Calorimetric ◽  
Anion Receptors ◽  
Electrolyte Membranes

Abstract Hydrosilylation reaction of 2.4.6.8-tetrahydro-2.4.6.8-tetramethylcyclotetrasiloxane with allyl acetoacetate and vinyltriethoxysilane at 1:3:1 ratio of initial compounds in the presence of Karstedt’s catalyst (Pt2[(VinSiMe2)2O]3), platinum hydrochloric acid (0.1 M solution in THF) and platinum on the carbon have been studied and D4R,R’ type methylorganocyclotetrasiloxane has been obtained. Ring-opening co-polymerization reactions of methylorganocyclotetrasiloxane and hexamethyldisiloxane, in the presence of catalytic amount of powder-like potassium hydroxide, have been carried out and linear methylsiloxane oligomer with regular arrangement of propyl acetoacetate and triethoxysilane groups in the side chain has been obtained. The synthesized methylorganocyclotetrasiloxane and oligomers were studied by FTIR, 1H, 13C, 29Si NMR spectroscopy. Comb-type oligomers were characterized by gel-permeation chromatography, wide- angle X-ray and differential scanning calorimetric methods. Via sol-gel processes of doped with lithium trifluoromethylsulfonate (triflate) or lithium bis- (trifluoromethylsulfonyl)imide oligomer systems solid polymer electrolyte membranes have been obtained. The dependence of ionic conductivity as a function of temperature and salt concentration has been studied. The electrical conductivity of these materials at room temperature belongs to the range of 7x10-8 to 4x10-6 S cm-1 and depends on the structures of grafted anion receptors and the polymer backbones.

scholarly journals Improving the Mechanical Durability of Short-Side-Chain Perfluorinated Polymer Electrolyte Membranes by Annealing and Physical Reinforcement

ACS Omega ◽  
2019 ◽  
Vol 4 (21) ◽  
pp. 19153-19163 ◽  
Author(s):  
Sung-Hee Shin ◽  
Pratama Juniko Nur ◽  
Abdul Kodir ◽  
Da-Hee Kwak ◽  
Hyejin Lee ◽  
...  
Keyword(s):  
Polymer Electrolyte ◽  
Polymer Electrolyte Membranes ◽  
Side Chain ◽  
Short Side ◽  
Electrolyte Membranes ◽  
Mechanical Durability
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