Membranes from Poly(aryl ether)-Based Ionomers Containing Randomly Distributed Nanoclusters of 6 or 12 Sulfonic Acid Groups

2009 ◽  
Vol 42 (4) ◽  
pp. 1153-1160 ◽  
Author(s):  
Shuanghong Tian ◽  
Yuezhong Meng ◽  
Allan S. Hay
Keyword(s):  
Sulfonic Acid ◽  
Aryl Ether ◽  
Sulfonic Acid Groups

The preparation of novel sulfonated poly(aryl ether ketone sulfone)/TiO2 composite membranes with low methanol permeability for direct methanol fuel cells

2020 ◽  
pp. 095400832095804
Author(s):  
Chengyun Yuan ◽  
Yinghan Wang
Keyword(s):  
Sulfonic Acid ◽  
Direct Methanol Fuel Cells ◽  
Composite Membranes ◽  
Methanol Permeability ◽  
Aryl Ether ◽  
Direct Methanol ◽  
Aryl Ether Ketone ◽  
Ether Ketone ◽  
Sulfonic Acid Groups ◽  
Sulfonated Poly

A sulfonated poly(aryl ether ketone sulfone) (SPAEKS) with locally dense sulfonic acid groups is synthesized and different amounts of TiO2 is doped into SPAEKS matrix to prepare composite membranes (SPAEKS/TiO2-x). SEM shows that TiO2 in the composite membranes has good dispersibility when TiO2 content is not higher than 3%. The composite membranes show good mechanical properties, dimensional stability and oxidative stability. The proton conductivity of composite membranes is near to that of Nafion 117 membrane and methanol permeability of composite membranes is much lower than that of Nafion 117 membrane. Therefore, the proton selectivity of composite membranes is higher than that of Nafion 117 membrane. In particular, proton selectivity of SPAEKS/TiO2-3% (12.8 × 104 S s cm−3) is four times higher than that of Nafion 117 membrane (3.2 × 104 S s cm−3).

scholarly journals Low-swelling proton-conducting copoly(aryl ether nitrile)s containing naphthalene structure with sulfonic acid groups meta to the ether linkage

Polymer ◽  
2006 ◽  
Vol 47 (3) ◽  
pp. 808-816 ◽  
Author(s):  
Yan Gao ◽  
Gilles P. Robertson ◽  
Michael D. Guiver ◽  
Serguei D. Mikhailenko ◽  
Xiang Li ◽  
...  
Keyword(s):  
Sulfonic Acid ◽  
Aryl Ether ◽  
Ether Linkage ◽  
Proton Conducting ◽  
Sulfonic Acid Groups

scholarly journals Synthesis of Copoly(aryl ether ether nitrile)s Containing Sulfonic Acid Groups for PEM Application†

2005 ◽  
Vol 38 (8) ◽  
pp. 3237-3245 ◽  
Author(s):  
Yan Gao ◽  
Gilles P. Robertson ◽  
Michael D. Guiver ◽  
Serguei D. Mikhailenko ◽  
Xiang Li ◽  
...  
Keyword(s):  
Sulfonic Acid ◽  
Aryl Ether ◽  
Sulfonic Acid Groups

scholarly journals Methoxylation of α-pinene over poly(vinyl alcohol) containing sulfonic acid groups

2009 ◽  
Vol 147 (2-3) ◽  
pp. 302-306 ◽  
Author(s):  
D.S. Pito ◽  
I.M. Fonseca ◽  
A.M. Ramos ◽  
J. Vital ◽  
J.E. Castanheiro
Keyword(s):  
Vinyl Alcohol ◽  
Sulfonic Acid ◽  
Poly Vinyl Alcohol ◽  
Sulfonic Acid Groups

Superprotonic Conductivity of a UiO-66 Framework Functionalized with Sulfonic Acid Groups by Facile Postsynthetic Oxidation

2015 ◽  
Vol 127 (17) ◽  
pp. 5231-5235 ◽  
Author(s):  
Won Ju Phang ◽  
Hyuna Jo ◽  
Woo Ram Lee ◽  
Jeong Hwa Song ◽  
Kicheon Yoo ◽  
...  
Keyword(s):  
Sulfonic Acid ◽  
Sulfonic Acid Groups

Do acid–base interactions really improve the ion conduction in a proton exchange membrane? – a study on the effect of basic groups

2019 ◽  
Vol 7 (34) ◽  
pp. 19820-19830 ◽  
Author(s):  
Yuqian Sui ◽  
Yexin Du ◽  
Huayuan Hu ◽  
Jieshu Qian ◽  
Xuan Zhang
Keyword(s):  
Physicochemical Properties ◽  
Sulfonic Acid ◽  
Proton Exchange Membrane ◽  
Proton Exchange ◽  
Acid Base ◽  
Ion Conduction ◽  
Exchange Membrane ◽  
Sulfonic Acid Groups

Generating acid–base interactions between sulfonic acid groups in a proton exchange membrane (PEM) and the incorporation of basic groups are effective approaches to improving the physicochemical properties of a membrane.

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