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Showing 1 to 6 of 6 for “"Sulfonated Polysulfones"”.
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Characterization of polymeric membranes: sulfonated polysulfones
Sulfonated polysulfone has been shown to possess desirable physical properties for use as a reverse osmosis desalination membrane. In this work, an extensive of dense membranes made from sulfonated polysulfone having 0.2, 0.4, 0.5, 0.6, 0.8, and 1.0 degree of sulfonation is described. The degree of …
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Hydration Mechanisms in Sulfonated Polysulfones for Desalination Membrane Applications
This dissertation explores the properties of sulfonated poly(arylene ether sulfone)s for desalination membrane applications. A multi-scale approach is used to understand the relationships between the chemical structure of the polymer, the equilibrium water content, and the bulk properties. The …
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Synthesis and Characterization of Branched Ionomers for Performance in Ionic Liquid – Swollen Ionic Polymer Transducers
… number of studies conducted with non-perfluorosulfonated ionomers concentrated on changes in chemical composition to address processability, price, ionic conductivity, and hydrated modulus of the final IPT. Also, nearly all ionic polymer transducers operated with water as the diluent until the …
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Synthesis, Characterization and Structure - Property Relationships of Post - sulfonated Poly(arylene ether sulfone) Membranes for Water Desalination
… with the membrane process of reverse osmosis. Sulfonated polysulfones are a potential alternative to state-of-the-art thin film polyamides. Synthesized by step growth polymerization, polysulfone membranes have smooth surfaces and they are more chemically resistant relative to polyamides. …
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Structure-Property Relationships in the Design of High Performance Membranes for Water Desalination, Specifically Reverse Osmosis, Using Sulfonated Poly(Arylene Ether Sulfone)s
… This research focuses on the development of sulfonated poly(arylene ether sulfone) derivatives with differing amounts of sulfonation and with the ions placed at different structural positions. Previously, such materials were tested as potential high performance fuel cell membranes, but they …
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Synthesis and Characterization of Poly(arylene ether sulfone)s for Reverse Osmosis Water Purification and Gas Separation Membranes
… the University of Texas-Austin. Crosslinking of sulfonated poly(arylene ether sulfone) oligomers was studied systematically with regard to end-group functionality, polymer composition, and polymer hydrophilicity. Sulfonated bisphenol A based poly(arylene ether sulfone) random copolymers were …