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Full-Text Articles in Physical Sciences and Mathematics
Redox-Active Polymerization Catalysts And Their Applications, Nicholas M. Shawver
Redox-Active Polymerization Catalysts And Their Applications, Nicholas M. Shawver
Masters Theses
Traditional catalyst systems are reliable means to produce polymers with well-defined architectures and thermomechanical properties; however, they are often limited by a narrow monomer scope and their ability access few, if any, advanced polymer architectures. To address this limitation, a new class of catalysts have recently emerged that feature redox-active moieties that may access advanced architectures through catalyst electronic modulation that arises from redox events occurring on the ligand scaffold or at the active metal center itself. For example, researchers have explored the ability of redox-active catalysts to impart “on-off” kinetic control during ring-opening polymerizations and their ability to access …
The Development Of Photoinduced Initiation Of Olefin Polymerization And Its Applications, Justin M. Burroughs
The Development Of Photoinduced Initiation Of Olefin Polymerization And Its Applications, Justin M. Burroughs
Doctoral Dissertations
Polyolefin synthesis is an ever-growing field due to the low cost of monomer feed stocks and the wide range of applications of the resulting polymeric material. Polyolefins are most commonly polymerized through coordination-insertion polymerization. One area this field of research has progressed is the development of complex ligand scaffolds to achieve various levels of control over polymerization. For example, researchers have been able to control molecular weight, branching density, and tacticity of various olefin polymerizations. As a result of complex ligand scaffolds, the catalytic systems become more expensive and less industrially applicable. On the other hand, little research efforts have …