Synthesis and properties of highly branched sulfonated poly(arylene ether)s with flexible alkylsulfonated side chains as proton exchange membranes

2016 ◽  
Vol 4 (6) ◽  
pp. 1326-1335 ◽  
Author(s):  
Dong Liu ◽  
Dan Tao ◽  
Jiangpeng Ni ◽  
Xiongzhi Xiang ◽  
Lei Wang ◽  
...  

A series of highly branched sulfonated poly(arylene ether)s with flexible alkylsulfonated side chains as proton exchange membranes were synthesized for the first time.

2012 ◽  
Vol 45 (5) ◽  
pp. 2460-2470 ◽  
Author(s):  
Hyung Kyu Kim ◽  
Min Zhang ◽  
Xuepei Yuan ◽  
Serguei N. Lvov ◽  
T. C. Mike Chung

2016 ◽  
Vol 40 (4) ◽  
pp. 3755-3762 ◽  
Author(s):  
RiMing Chen ◽  
Guang Li

The chemical structure and phase images of the SPAES-PQ-40 membrane.


2020 ◽  
pp. 095400832096816
Author(s):  
Hailin Yu ◽  
Yinghan Wang

Aldehyde terminated sulfonated poly (arylene ether sulfone) (SPAES-CHO) is prepared by a series of nucleophilic substitution reaction based on SPAES in this paper. Novel SPAES-graft-SPVA (SPAES-g-SPVA) membranes are fabricated by acetal reaction between SPAES-CHO and different amounts of sulfonated poly (vinyl alcohol) (SPVA). The 1H-NMR and FTIR indicate the successful preparation of SPAES-CHO and SPAES-g-SPVA membranes. With the introduction of SPVA, the SPAES-g-SPVA membranes have much lower methanol permeability than pure SPAES membrane and Nafion117 membrane. The methanol permeability coefficients of the SPAES-g-SPVA membranes decrease from 3.41 × 10−7 cm2 s−1 to 1.67 × 10−7 cm2 s−1 with the increase of SPVA content. And the proton conductivity of all the membranes is higher than 15 mS cm−1 at 25°C. Moreover, SPAES-g-SPVA membranes exhibit high proton selectivity. Especially, SPAES-g-SPVA-30% membrane has the highest proton selectivity, which is nearly five times higher than Nafion117.


RSC Advances ◽  
2020 ◽  
Vol 10 (42) ◽  
pp. 24772-24783 ◽  
Author(s):  
Shouping Wang ◽  
Fugang He ◽  
Qiang Weng ◽  
Diao Yuan ◽  
Pei Chen ◽  
...  

A series of novel crosslinkable and crosslinked side-chain SPAES has been prepared. The S-SPAES(1/2) has high proton conductivity and acceptable single-cell performance.


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