Publications by authors named "Giuseppina Scalzo"
This study explored the potential of blending poly-(ether sulfone)/disulfonated poly-(ether sulfone) (PES/SPES) at various weight ratios with and without polyvinylpyrrolidone (PVP) to enhance the membrane properties for potential applications like fuel cells, water treatment, and lithium-ion battery separators. SPES was appropriately synthesized as a copolymer constituted of alternated unsulfonated (ES) and disulfonated (SES) sequences, achieving a degree of sulfonation of about 100%. SPES improved the membrane's hydrophilicity, while PVP acts as compatibilizer of PES/SPES blends and pore creator.
View Article and Find Full Text PDFIn recent decades, ionic liquids (ILs) have garnered research interest for their noteworthy properties, such as thermal stability, low or no flammability, and negligible vapour pressure. Moreover, their tunability offers limitless opportunities to design ILs with properties suitable for applications in many industrial fields. This study aims to synthetise two series of methylimidazolium ILs bearing long alkyl chain in their cations (C9, C10, C12, C14, C16, C18, C20) and with tetrafluoroborate (BF) and the 1,3-dimethyl-5-sulfoisophthalate (DMSIP) as counter ions.
View Article and Find Full Text PDFArticle Synopsis
- - Polyimides are promising materials for gas separation membranes due to their selective permeability and ability to operate under various temperatures and pressures, and current research is focusing on enhancing their performance through various fillers.
- - Researchers tested butylcalix[n]arene macrocycles (PTBCs) with different sizes as fillers in a thermoplastic polyimide to create nanocomposite membranes, using concentrations from 1-9 wt%.
- - The study involved preparation of films through a pre-mixing and solvent casting process, followed by characterization of their properties and gas transport, showing that the addition of these nanoporous fillers improved molecular transport efficiency.