Dipyridyl functionalized polysulfones for membrane production

Electrical conductivity and optical properties of a new quaternized polysulfone

“…For this reason, researches are now focusing on the synthesis of new polymers that match to desired applications. Modification procedures allow a compromise between hydrophobicity and hydrophilicity; in this way, the modified membranes combine the superior bulk properties of the hydrophobic polymers with the good surface characteristics of the hydrophilic ones [7].…”

Numerical simulation of a UV photografting process for hollow-fiber membranes

“…The UF membranes used for grafting are made of polysulfone. This material was selected because polysulfone membranes are widely used in industrial applications and present certain advantages such as chemical and physical resistance in use and photosensitivity to UV radiation [6,7]. As the polymer formed, poly(acrylic acid), is highly soluble in water, a cross-linker was included in the monomer solution in order to ensure a correct cohesion of the grafted polymer.…”

Clay-Containing Polysulfone Nanocomposites

“…Its importance is due to its mechanical, thermal and chemical stability as well as its excellent processability. A field which largely uses polysulfone is the membrane area in applications such as microfiltration, ultrafiltration, reverse osmosis and gas separation (Summers et al, 2003). However, the further enhancement in its physical property of polymer substrate is desirable for specific and enhanced applications.…”