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Exploring The Chemistry Of Phosphorus For Photopolymer Applications, Ryan Guterman
Exploring The Chemistry Of Phosphorus For Photopolymer Applications, Ryan Guterman
Electronic Thesis and Dissertation Repository
Prior to this thesis, phosphorus-containing polymers and photopolymerization represented two distinct, non-overlapping fields of study. This thesis examined the prospect of combining these two approaches to create a system possessing the benefits of both techniques. By exploiting the chemistry of phosphorus, and using photopolymerization as a fabrication method, new materials were developed and assessed for their use in various applications.
Among the many phosphorus compounds that may be used in polymer science, phosphonium salts and primary phosphines were of specific focus. First, highly fluorinated phosphonium monomers were developed to create photopolymerized hydrophobic surfaces. A structure-activity relationship was established, as both …
Surface Modification Of Aluminum Alloys By Plasma Electrolytic Oxidation, Vahid Dehnavi
Surface Modification Of Aluminum Alloys By Plasma Electrolytic Oxidation, Vahid Dehnavi
Electronic Thesis and Dissertation Repository
Plasma Electrolytic Oxidation (PEO) is a surface treatment for the production of ceramic oxide coatings with great properties, such as high wear and corrosion resistance, on metal substrates, particularly aluminum and magnesium alloys. Formation of PEO coatings involves complex processes and mechanisms that are difficult to study. Currently, the PEO process is in a transition phase from research to commercial application, with a primary focus on the corrosion and wear protection of light alloys, and has recently generated interest as a promising surface treatment for biomedical applications.
To justify the industrial application of PEO, a more systematic and in-depth study …