Sulfonated Poly(ether ether ketone) Ionomers and Their High Temperature Shape Memory Behavior

2014 ◽  
Vol 47 (5) ◽  
pp. 1732-1740 ◽  
Author(s):  
Ying Shi ◽  
R. A. Weiss
Keyword(s):  
High Temperature ◽  
Shape Memory ◽  
Shape Memory Behavior ◽  
Ether Ether Ketone ◽  
Poly Ether Ether Ketone ◽  
Ether Ketone ◽  
Sulfonated Poly

Solvent Induced Shape Memory Behaviour of Sulfonated Poly Ether Ether Ketone (SPEEK)

2012 ◽  
Author(s):  
V. S. Anand ◽  
K. V. Vimal ◽  
Susy Varughese
Keyword(s):  
Shape Memory ◽  
Mechanical Stability ◽  
Proton Exchange ◽  
Shape Memory Behavior ◽  
Ether Ether Ketone ◽  
Poly Ether Ether Ketone ◽  
Different Temperatures ◽  
Ether Ketone ◽  
First Time ◽  
Sulfonated Poly

Shape memory polymers (SMPs) are a widely studied class of materials due to their numerous applications in various fields of engineering. They find applications in deployable structures, biomedical devices, adaptive optical devices, sensors and actuators, in textiles etc. Recent studies have shown shape memory behavior in many polymers. Sulfonated poly ether ether ketone (SPEEK) is an ionic polymer which is being extensively studied for its application in fuel cells as a Proton Exchange Membrane (PEM) polymer due to its relatively higher thermal and mechanical stability over other PEMs in addition to proton transport. Recent studies on a sulfonated ionomer, Nafion® which has only one broad reversible phase transition, can show tunable, multiple shape memory effects by deforming the polymer at different temperatures without compromising the shape fixity (Rf). This paper reports, for the first time, the swelling (in solvents) induced shape memory behavior observed in SPEEK. The study was motivated by the preliminary observations of the response of SPEEK to solvent stimulus. SPEEK samples of varying degrees of sulfonation (DS) were prepared by the sulfonation of poly ether ether ketone (PEEK). The shape fixation and recovery rates (Rr) of the polymer under different temperatures and solvent conditions are reported. A comparative study of the shape memory response of the material with varying DS was also carried out. We also report for the first time the potential use of the parallel plate geometry of a rheometer for estimating the force during the shape recovery process. Visual demonstration of the shape memory effect is carried out using solvents at different temperatures.

Cross-linked sulfonated poly(ether ether ketone) electrolytes bearing pendent imidazole groups for high temperature proton exchange membrane fuel cells

2019 ◽  
Vol 3 (9) ◽  
pp. 2426-2434 ◽  
Author(s):  
Jingjing Jiang ◽  
Xingye Zhu ◽  
Huidong Qian ◽  
Jianfeng Xu ◽  
Zhouying Yue ◽  
...  
Keyword(s):  
Fuel Cells ◽  
High Temperature ◽  
Proton Exchange Membrane ◽  
Proton Exchange ◽  
Ether Ether Ketone ◽  
Poly Ether Ether Ketone ◽  
Ether Ketone ◽  
Exchange Membrane ◽  
Sulfonated Poly

A series of ionic-covalently cross-linked SPEEK bearing imidazole groups have been synthesized for high temperature fuel cells.

Polymerized imidazolium ionic liquids crosslinking sulfonated poly(ether ether ketone) (SPEEK) for high-temperature proton exchange membrane

RSC Advances ◽  
2016 ◽  
Vol 6 (113) ◽  
pp. 111729-111738 ◽  
Author(s):  
Quantong Che ◽  
Jie Yue
Keyword(s):  
Ionic Liquid ◽  
High Temperature ◽  
Proton Exchange Membrane ◽  
Proton Exchange ◽  
Imidazolium Ionic Liquids ◽  
Ether Ether Ketone ◽  
Poly Ether Ether Ketone ◽  
Ether Ketone ◽  
Exchange Membrane ◽  
Sulfonated Poly

An ionic liquid (IL) monomer of (acryloyloxy)propanylimidazolium chloride with unsaturated carbon–carbon double bonds was synthesized.

Investigation of sulfonated poly(ether ether ketone sulfone)/heteropolyacid composite membranes for high temperature fuel cell applications

2006 ◽  
Vol 44 (14) ◽  
pp. 1967-1978 ◽  
Author(s):  
Zhe Wang ◽  
Hongzhe Ni ◽  
Chengji Zhao ◽  
Xianfeng Li ◽  
Tiezhu Fu ◽  
...  
Keyword(s):  
High Temperature ◽  
Fuel Cell ◽  
Composite Membranes ◽  
Ether Ether Ketone ◽  
Poly Ether Ether Ketone ◽  
Ether Ketone ◽  
Sulfonated Poly

4D printing high temperature shape-memory poly(ether–ether–ketone)

2021 ◽  
Vol 30 (11) ◽  
pp. 115006
Author(s):  
Tianruo Zhou ◽  
Yuting Zhou ◽  
Zheng Hua ◽  
Youzhou Yang ◽  
Cheng Zhou ◽  
...  
Keyword(s):  
High Temperature ◽  
Shape Memory ◽  
4D Printing ◽  
Ether Ether Ketone ◽  
Poly Ether Ether Ketone ◽  
Ether Ketone
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