title: Polysulfone functionalized with phosphonated poly(pentafluorostyrene) grafts for potential fuel cell applications.
abstract: A multi-step synthetic strategy to polysulfone (PSU) grafted with phosphonated poly(pentafluorostyrene) (PFS) is developed. It involves controlled radical polymerization resulting in alkyne-end functional PFS. The next step is the modification of PSU with a number of azide side groups. The grafting of PFS onto PSU backbone is performed via the "click"-chemistry approach. In a final step, the PFS-grafts are subjected to the post phosphonation. The copolymers are evaluated as membranes for potential fuel cell applications through thermal analyses, water uptake, and conductivity measurements. The proposed synthetic route opens the possibility to tune copolymers' hydrophilic-hydrophobic balance to obtain membranes with an optimal balance between proton conductivity and mechanical properties.
authors.affiliation: Danish Polymer Centre, Department of Chemical and Biochemical Engineering, Technical University of Denmark, Søltofts Plads, Denmark.
authors.forename: Ivaylo
authors.initials: I
authors.lastname: Dimitrov
authors.forename: Shogo
authors.initials: S
authors.lastname: Takamuku
authors.forename: Katja
authors.initials: K
authors.lastname: Jankova
authors.forename: Patric
authors.initials: P
authors.lastname: Jannasch
authors.forename: Søren
authors.initials: S
authors.lastname: Hvilsted
mesh_terms: D011211:Electric Power Supplies; D004736:Energy-Generating Resources; D057927:Hydrophobic and Hydrophilic Interactions; D015394:Molecular Structure; D058105:Polymerization; D011108:Polymers / Q000138:chemical synthesis / Q000737:chemistry*; D011137:Polystyrenes / Q000138:chemical synthesis / Q000737:chemistry*; D013450:Sulfones / Q000138:chemical synthesis / Q000737:chemistry*
chemical_list: D011108:Polymers; D011137:Polystyrenes; D013450:Sulfones; C017662:polysulfone P 1700; C024075:styrofoam