Show simple item record

dc.contributor.advisorLuscombe, Christine K
dc.contributor.authorBuenaflor, Jeffrey Paz
dc.date.accessioned2020-02-04T19:25:04Z
dc.date.submitted2019
dc.identifier.otherBuenaflor_washington_0250E_21031.pdf
dc.identifier.urihttp://hdl.handle.net/1773/45135
dc.descriptionThesis (Ph.D.)--University of Washington, 2019
dc.description.abstractCatalyst transfer polymerization (CTP) is a versatile synthetic tool to obtain access to sequence specific π-conjugated polymers, which are attractive materials for organic electronics. CTP proceeds through a chain-growth mechanism creating polymers with precise molecular weights, narrow dispersities, and end-group functionalization. These parameters are desirable properties that can affect the overall performance of organic electronic and photonic devices. While CTP has made large advances in the synthesis of π-conjugated polymers in the past 15 years, its substrate scope has been limited to mainly simple and electron rich monomers. The need to expand the scope of CTP to access more complicated conjugated building blocks, such as alternating donor-acceptor monomers, necessitates the need to develop new strategies. This report presents an approach to improve CTP by exploring a model study involving nickel and palladium precatalysts to test the impact of cooperative catalysis and non-covalent π-π stacking interactions on the important metal π-aryl complex. Catalyst performance in CTP was evaluated using poly(3-hexylthiophene) as the model system. Monomer conversion, degree of polymerization, end-group identity, and molecular weight distribution were analyzed to determine the quality of the polymerizations. The information gained from this study provided insight into what structural features are desirable when designing a suitable catalyst that will exhibit a controlled polymerization.
dc.format.mimetypeapplication/pdf
dc.language.isoen_US
dc.rightsCC BY-NC-ND
dc.subjectcatalyst-transfer polymerization
dc.subjectconjugated polymer
dc.subjectmetal-polymer complex
dc.subjectmultimetallic catalysis
dc.subjectP3HT
dc.subjectPolymer chemistry
dc.subjectOrganic chemistry
dc.subjectInorganic chemistry
dc.subject.otherChemistry
dc.titleDesigning nickel- and palladium-based precatalysts to improve catalyst-transfer polymerization towards conjugated polymer synthesis
dc.typeThesis
dc.embargo.termsRestrict to UW for 1 year -- then make Open Access
dc.embargo.lift2021-02-03T19:25:04Z


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record