In-situ molecular-level hybridization enabling high-sulfonation-degree sulfonated poly(ether ether ketone) membrane with excellent anti-swelling ability and proton conduction

2021 ◽  
Author(s):  
Zhuofan Zhou ◽  
Yan Wang ◽  
Jianlong Lin ◽  
Yafang Zhang ◽  
Lingbo Qu ◽  
...  
Keyword(s):  
Molecular Level ◽  
Proton Conduction ◽  
Ether Ether Ketone ◽  
Sulfonation Degree ◽  
Poly Ether Ether Ketone ◽  
Ether Ketone ◽  
Sulfonated Poly

Novel composite membranes based on sulfonated poly(ether ether ketone) and adenosine triphosphate for enhanced proton conduction

RSC Advances ◽  
2015 ◽  
Vol 5 (92) ◽  
pp. 75434-75441 ◽  
Author(s):  
Yongheng Yin ◽  
Jiahui Wang ◽  
Shengtao Jiang ◽  
Xin Yang ◽  
Xuya Zhang ◽  
...  
Keyword(s):  
Proton Conductivity ◽  
Adenosine Triphosphate ◽  
Composite Membranes ◽  
Proton Conduction ◽  
Ether Ether Ketone ◽  
Poly Ether Ether Ketone ◽  
Ether Ketone ◽  
Sulfonated Poly

Novel SPEEK/ATP composite membranes were prepared via a facile method, achieving improved proton conductivity under different conditions.

scholarly journals Effect of Sulfonation Degree and PVDF Content on the Structure and Transport Properties of SPEEK/PVDF Blend Membranes

Polymers ◽  
2019 ◽  
Vol 11 (4) ◽  
pp. 676
Author(s):  
Shaojian He ◽  
Shaoxiong Zhai ◽  
Chong Zhang ◽  
Yang Xue ◽  
Wei Yang ◽  
...  
Keyword(s):  
Transport Properties ◽  
Polyvinylidene Fluoride ◽  
Methanol Permeability ◽  
Miscible Blend ◽  
Ether Ether Ketone ◽  
Sulfonation Degree ◽  
Poly Ether Ether Ketone ◽  
Blend Membranes ◽  
Ether Ketone ◽  
Sulfonated Poly

Sulfonated poly (ether ether ketone) (SPEEK) with four different sulfonation degrees (SDs) were prepared, and mixed with polyvinylidene fluoride (PVDF) to prepare four series of SPEEK/PVDF blend membranes. The miscibility between SPEEK and PVDF was investigated by observing the micro-morphologies. The miscible blend membranes were found in the SPEEK/PVDF blend membranes in which either SPEEK had relatively low SD or consisted of low content of one component (either SPEEK or PVDF). The PVDF crystallinity was found to decrease in the SPEEK/PVDF membranes that had better blend miscibility. With the increase of PVDF content, all the blend membranes exhibited the decreased proton conductivity and methanol permeability, and the miscible blend membranes decreased more slowly than the immiscible ones.

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