title: Photochemically prepared polysulfone/poly(ethylene glycol) amphiphilic networks and their biomolecule adsorption properties.
abstract: Polysulfone/poly(ethylene glycol) amphiphilic networks were prepared via in situ photo-induced free radical crosslinking polymerization. First, the hydrophobic polysulfone diacrylate (PSU-DA) oligomer was synthesized by condensation polymerization and subsequent esterification processes. Then, the obtained oligomer was co-crosslinked with the hydrophilic poly(ethylene glycol) diacrylate (PEG-DA) or poly(ethylene glycol) methyl ether acrylate (PEG-MA) at different feed ratios. In the case of PEG-MA, the resulting network possessed dangling pendant hydrophilic chains on the crosslinked surface. The structure and the morphology of the membranes were characterized by attenuated total reflection infrared spectroscopy (ATR-IR) and scanning electron microscopy (SEM). The enhancement of surface hydrophilicity was investigated by water contact angle measurements. The biomolecule adsorption properties of these networks were also studied. The biomolecules easily adsorbed on the surface of the hydrophobic polysulfone networks whereas dangling hydrophilic chains on the surface prevented the adsorption of the biomolecules.
authors.affiliation: Istanbul Technical University, Faculty of Science and Letters, Department of Chemistry, Maslak, Istanbul, Turkey.
authors.forename: Cemil
authors.initials: C
authors.lastname: Dizman
authors.forename: Dilek Odaci
authors.initials: DO
authors.lastname: Demirkol
authors.forename: Sahin
authors.initials: S
authors.lastname: Ates
authors.forename: Lokman
authors.initials: L
authors.lastname: Torun
authors.forename: Serhan
authors.initials: S
authors.lastname: Sakarya
authors.forename: Suna
authors.initials: S
authors.lastname: Timur
authors.forename: Yusuf
authors.initials: Y
authors.lastname: Yagci
mesh_terms: D000327:Adsorption; D057927:Hydrophobic and Hydrophilic Interactions; D008855:Microscopy, Electron, Scanning; D011092:Polyethylene Glycols / Q000737:chemistry*; D011108:Polymers / Q000737:chemistry*; D017550:Spectroscopy, Fourier Transform Infrared; D013450:Sulfones / Q000737:chemistry*; D013499:Surface Properties
chemical_list: D011108:Polymers; D013450:Sulfones; C017662:polysulfone P 1700; D011092:Polyethylene Glycols