Porous Polyvinylidene Difluoride (PVDF) Monoliths via Thermally Induced Dissolution/Precipitation. Three Strategies to Pore-Tuning: Probing the possibilities of further controlling of the PVDF monolith pore formation process
(English)Manuscript (preprint) (Other academic)
The porous properties and morphologies of the PVDF monoliths prepared via thermally induced dissolution/precipitation process were proved to be adjustable, by employing several porogenic additives to the PVDF/n-butyl butyrate matrix. PVDF monoliths have been separately precipitated from; only the main diluent (n-butyl butyrate); mixtures of the main diluent and a co-diluent; binary polymer mixtures (including an additional porogenic polymer such as poly ethylene glycol PEG200, PEG400 and poly propylene glycol PPG425); and the main diluent in the presence of a fluoro-surfactant (FSO, FSN). Their meso- and macro-porous properties were characterized by nitrogen cryoption measurements (3-5 repeated runs per sample), and a subsequent single analysis by mercury intrusion porosimetry. The visual assessment of the monoliths morphology differences were carried out using scanning electron microscopy (SEM).
Research subject Analytical Chemistry
IdentifiersURN: urn:nbn:se:umu:diva-89313OAI: oai:DiVA.org:umu-89313DiVA: diva2:719791