Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 5 of 5 for “"sulfonated poly(ether ether ketone)"”.
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Silica-based nanocomposite membranes via the sol gel process of polyethoxysiloxane within a sulfonated poly(ether-ether-ketone) matrix: morphology and proton mobility
… from solutions, where the organic phase is the sulfonated poly(ether ether ketone) (SPEEK) and the inorganic phase are silica nanoparticles obtained from the in situ "water free" sol-gel process of polyethoxysiloxane (PEOS). PEOS is a soluble and liquid hyperbranched polymer of low viscosity …
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Design of Advanced Materials With Novel Microstructural Features
… membranes were prepared by solution blending sulfonated poly (ether ether ketone) and polyacrylonitrile in DMF and heating under nitrogen at 380 °C. This novel system offered a possible low-cost alternative to Nafion membranes for fuel cells.
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Design of advanced reverse osmosis and nanofiltration membranes for water purification
… based on the thin film composite (TFC) aromatic polyamide membranes. However, they have several disadvantages including low resistance to fouling, low chemical and thermal stabilities and limited chlorine tolerance. To address these problems, advanced RO/NF membranes are being developed from …
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Development of novel catalysts coated non-fluorinated proton exchange membranes for water electrolysis
… made in PEM technology with the development of poly perfluorosulfonic acid (PFSA)-based membranes. These membranes offer high proton conductivity, exceptional chemical stability, and mechanical strength under vari-ous conditions, thanks to the strong C–F bonds in their molecular structure. …
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Design of chemically treated activated carbon fibers for mercury removal and advanced membranes for water purification
… To address this problem, the crosslinking of polyimide membranes is a commonly known method to prepare membranes suitable for solvent resistant nanofiltration. In this work, preparation of crosslinked membranes of P84 copolyimide asymmetric membranes using branched polyethylenimine (PEI) at …