PEMFC	Proton exchange membrane fuel cell
AEMFC	Anion exchange membrane fuel cell
AEM	Anion exchange membrane
PEM	Proton exchange membrane
DABCO	1,4-diazabicyclo-[2,2,2]-octane
PSU	Polysulfone
TMEDA	N,N,N′,N′-tetramethylethylenediamine
IPN	Interpenetrating polymer network
PVA	Poly (vinyl alcohol)
PAADDA	Poly (acrylamide-co-diallyldimethylammonium chloride
sIPN	Semi-interpenetrating polymer network
BTMA	Benzyltrimethylammonium
PS	Poly (styrene)
PPO	Poly (2,6-dimethyl-1,4-phenyleneoxide)
PEG	Poly (ethylene glycol)
SPEEK	Sulfonated poly (ketone ether ether ketone)
TS	Tensile strength
PEEK	Poly (ketone ether ether ketone)
PAEK	Poly (aryl ether ketone)
MIm-PSU	1-Methylimidazolium-functionalized polysulfone
DCE	1,2-dichloroethane
TMSCS	Trimethylsilyl chlorosulfonate
DMF-d7	N,N-Dimethylformamide-d7
DMSO-d6	Dimethyl sulfoxide-d6
NMP	1-methyl-2-pyrrolidone
CMPSU	Chloromethylated polysulfone
DC	Degree of chloromethylation
SPSU	Sulfonated polysulfone
MIm	Methylimidazole
DCl	Degree of covalent crosslinking
1H-NMR	Proton nuclear magnetic resonance spectroscopy
TMS	Tetramethylsilane
TGA	Thermogravimetric analysis
TOD	Onset decomposition temperature
TFD	Fastest decomposition temperature
WU%	Water uptake
IEC	Ion-exchange capacity
EIS	Electrochemical impedance spectroscopy
DS	Degree of sulfonation
TMA	Trimethyl ammonium
HFA	High frequency arc
LFA	Low frequency arc