Probing the molecular level of polyimide-based solvent resistant nanofiltration membranes with positron annihilation spectroscopy.
Positron annihilation spectroscopy (PAS) has been performed to link fundamental polymer properties to membrane performance, more specifically for polyimide (PI)-based solvent-resistant nanofiltration membranes. Laboratory-made membranes with well-known properties were applied first to define proper pretreatment conditions for the membrane to allow PAS-analysis and to allow more correct linking of PAS results to membrane properties. This knowledge was then applied to probe the structure of commercial PI-based Starmem membranes.
Cano-Odena
Angels
A
Centre for Surface Chemistry and Catalysis, Faculty of Bioscience Engineering, Katholieke Universiteit Leuven, Kasteelpark Arenberg 23-box 2461, B-3001 Leuven, Belgium.
Vandezande
Pieter
P
Hendrix
Katrien
K
Zaman
Rolph
R
Mostafa
Khaled
K
Egger
Werner
W
Sperr
Peter
P
De Baerdemaeker
Jérémie
J
Vankelecom
Ivo F J
IF