PPEG	block copolymer of propylene oxide with ethylene oxide
TDI	2,4-tolylene diisocyanate
POSS	polyhedral oligomeric silsesquioxane
Gl-POSS	octaglycidyl polyhedral oligomeric silsesquioxane
POI-0	the polymer based on TDI and PPEG
POI-Gl-POSS	the polymer based on TDI, PPEG and Gl-POSS
ICN	polyisocyanurate
E/K	molar ratio of epoxy groups to potassium alcoholate groups
TMA	thermomechanical analysis
TGA	thermogravimetric analysis
AFM	atomic force microscopy
DLT	dielectric loss tangent
MLT	mechanical loss tangent
MI	macroinitiator
PS	pressure sensor
VG	vacuum gauge
RMM	radial membrane module