title: Probing the molecular level of polyimide-based solvent resistant nanofiltration membranes with positron annihilation spectroscopy.
abstract: 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.
authors.affiliation: Centre for Surface Chemistry and Catalysis, Faculty of Bioscience Engineering, Katholieke Universiteit Leuven, Kasteelpark Arenberg 23-box 2461, B-3001 Leuven, Belgium.
authors.forename: Angels
authors.initials: A
authors.lastname: Cano-Odena
authors.forename: Pieter
authors.initials: P
authors.lastname: Vandezande
authors.forename: Katrien
authors.initials: K
authors.lastname: Hendrix
authors.forename: Rolph
authors.initials: R
authors.lastname: Zaman
authors.forename: Khaled
authors.initials: K
authors.lastname: Mostafa
authors.forename: Werner
authors.initials: W
authors.lastname: Egger
authors.forename: Peter
authors.initials: P
authors.lastname: Sperr
authors.forename: Jérémie
authors.initials: J
authors.lastname: De Baerdemaeker
authors.forename: Ivo F J
authors.initials: IF
authors.lastname: Vankelecom