Ryan, Matthew David, authorMiyake, Garret, advisorChen, Eugene, committee memberKota, Arun, committee memberSnow, Christopher, committee member2019-09-102019-09-102019https://hdl.handle.net/10217/197301The synthesis, application, and mechanistic investigation of the 5,10-diaryldihydrophenazine catalyst family as applied to organocatalyzed atom transfer radical polymerization is presented in this dissertation. The N,N-Diaryl Dihydrophenazine catalyst family, which will be referred to in this dissertation as the phenazines, are an appealing class of molecules due to their strongly reducing excited states, accessed through modular syntheses enabling a wide range of photophysical and electrochemical properties. This class of molecules represented the first example of organic catalysts capable of operating a controlled, visible light driven, organocatalyzed atom transfer radical polymerization for the precision syntheses of (meth)acrylic polymers. Phenazine catalysts were shown to polymerize (meth)acrylic monomers to polymers of very low dispersities (< 1.10) in a process with quantitative initiator efficiency; both features crucial to produce precision polymeric materials poised for myriad applications. Supported by computational efforts, mechanistic understanding and structure-property-catalyst activity relationships were identified and harnessed to design optimal polymerization conditions, which have laid the groundwork for new research efforts into highly reducing, visible light absorbing, organic photocatalysts.born digitaldoctoral dissertationsengCopyright and other restrictions may apply. User is responsible for compliance with all applicable laws. For information about copyright law, please see https://libguides.colostate.edu/copyright.catalysisATRPphotoredoxText