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Showing 1 to 3 of 3 for “"Polyphenylquinoxaline"”.
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Novel Polyphenylquinoxaline and Polybenzimidazole Proton Exchange Membranes For High Temperature Fuel Cell Systems
… and excellent long-term stability. </p><p>Polyphenylquinoxalines (PPQs), a novel chemistry for the PPA Process, were developed for use as proton exchange membranes. PPQs were synthesized via the polycondensation of 3,3',4,4'-tetraaminobiphenyl and 1,4-bisbenzil in polyphosphoric acid. It …
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Chromic acid anodized Ti-6Al-4V: its characterization and its single lap bond strength to heat resistant adhesives
… ≥ 423K, and were: polysulfone; eolyethersulfone; polyphenylquinoxaline; polyetherimide, both unfilled and 20% glass filled; and 50% calcium carbonate filled polyimide. Hydrofluoric acid (HF) added to the CA anodization solution was necessary to produce structural bonds. CA/HF oxide was more …
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Localised states in organic semiconductors and their detection
… polymeren und niedermolekularen Verbindungen (Polyphenylquinoxaline, Trisphenylquinoxaline und Oxadiazole), die wegen ihrer technologischen Bedeutung ausgewählt wurden, zeigen komplexes thermisches Verhalten. Insbesondere hoch geordnete Filme eines amphiphil substituierten …