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 7 of 7 for “"in situ FTIR spectroscopy"”.
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Poisoning and Sulfation on Vanadia SCR Catalyst
… flue gases from both coal and coal-biomass co-firing boilers were investigated. BET surface area and average pore diameter measurements on both fresh and exposed commercial catalyst samples indicated pore plugging occurred to exposed catalyst samples. ESEM analyses showed fouling on catalyst …
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Functional Block Copolymers via Anionic Polymerization for Electroactive Membranes
Ion-containing block copolymers blend ionic liquid properties with well-defined polymer architectures. This provides conductive materials with robust mechanical stability, efficient processability, and tunable macromolecular design. Conventional free radical polymerization and anion exchange …
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Design and characterization of zeolite supported cobalt carbonyl catalysts
… soluble catalysts. A heterogeneous system consisting of Co₂(CO)₈ impregnated on zeolites with faujasitic structure has been designed and investigated using a variety of techniques. In situ FTIR spectroscopy and carbon monoxide evolution were used to identify the major products generated, namely …
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Effects of Functionality and Charge in the Design of Acrylic Polymers
Use of a mixed triisobutylaluminum/1,1-diphenylhexyllithium intiator enabled the anionic polymerization of methyl methacrylate at room temperature, resulting in narrow molecular weight distributions and syndiorich structures. Polymerizations were controlled above Al:Li = 2, and control …
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Synthesis and Characterization of Tailored Macromolecules via Stable Free Radical Polymerization Methodologies
… for production of controlled macromolecules was investigated using a novel monomer, 2-vinylnaphthalene. Initial polymerizations resulted in molecular weight distributions typical of conventional free radical polymerization techniques (>2.0). Manipulation of the initiator concentration and the …
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Synthesis and Characterization of Multi-Component Polymeric Materials Prepared via Free Radical Polymerization
… polystyrenes were prepared via the coupling of 2,2,6,6-tetramethyl-1-piperidinyloxy (TEMPO) terminated polystyrene oligomers with divinylbenzene (DVB) in m-xylene at 138 °C. Linear polystyrene oligomers (Mn = 19,300 g/mol, Mw/Mn = 1.10) were synthesized in bulk styrene using benzoyl …
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Heterogeneous Catalysis for CO2 Valorization: Catalyst Studies and Infrared Spectroscopy
… è presente nell'allegato / the abstract is in the attachment