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Refining Chlorosulfonation Methods for the Synthesis of a Perfluoroalkyl Arylsulfonimide (PFSI) Monomer
Get PDFProton-exchange membrane (PEM) fuel cells are sources of energy that are clean, quiet, and highly responsive to changes in power needs, making them promising for use in automobiles and other portable power devices. The electrolyte of a PEM cell–the layer responsible for conductivity–is a polymer membrane, commonly consisting of perfluoroalkyl sulfonic acid (PFSA) polymers. In place of the PFSA polymers, perfluoroalkyl arylsulfonimide (PFSI) polymers are expected to improve the efficiency of PEM fuel cells with better stability and proton conductivity. The trifluovinylether (TFVE) aryl perfluorosulfonamide monomer is a new PFSI monomer proposed to fulfill these benefits once polymerized. The previous six-step synthesis of the monomer has been refined to a more time and cost-effective five-step synthesis by using a slightly altered, commercially available starting material. The new starting material was successfully brominated in the first reaction step to protect the trifluorvinyl ether double bond. Our research focused on performing the subsequent chlorosulfonation reaction. Through reflux, filtration, and drying, the crude chlorosulfonation product was obtained for multiple trials but requires further purification and characterization before procession of the synthesis
Beauty and the Feast: The Effects of Glucose-Induced Insulin Response and Attractiveness Perception
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Discovery of a Two-Component System That Responds to Vancomycin in Clostridioides difficile
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The characterization and synthesis of Tb3+ homoleptic complexes utilizing bidentate ligands
No full textCrystallization is one of the main goals when it comes to purity. Through dissolving a solid, heating it and cooling it can allow for a crystalline structure to form. The crystalline structure created is pure, and all the impurities will dissolve in the mother liquor. This is a foundational idea of crystallization. Tb(bpy)2(NO3)3 (bpy = 2,2’-bipyridine) is a complex synthesized by refluxing the homoleptic complex Tb(NO3)3 and what will become its bidentate ligand bpy. Not only are crystals important for purity but Tb(bpy)2(NO3)3 also has luminescent properties making it an excellent candidate to be a chemical sensor
Hot Yoga, Hot Connections: Strengthening Brand Presence Through Influencer and Community Engagement
No full textIn Spring 2025, a team of Belmont University students in Public Relations Campaigns class partnered with Bend and Zen Hot Yoga as their community partner, planning and implementing a campaign to benefit the organization. Their objectives were to to host an influencer content creation event promoted across multiple accounts, to revamp Bend and Zen’s social media presence, to create a Patreon to bring in extra income, and to reach out to apartment complexes nearby to promote year-round engagement
Studio 6 Interior Design Research
No full textThe intent of this design is to address the intersection of dorm-life and mental health among college athletes by creating supportive, restorative living and community environments that promote physical recovery, emotional well-being, and community. Through emphasis on principles of biophilic design, color theory, and inclusive design, the spaces will integrate natural elements, intentional color palettes, and accessible features to foster healing and inclusivity. This holistic approach aims to enhance the overall well-being and performance of college athletes while supporting their unique challenges and identities
Tennessee Fish Migrations: Smallmouth Buffalo and White Bass
No full textThe context for this project is the consistent migration ofcertain fish species, namely the smallmouth buffalo and white bass, upstream tolay and fertilize their eggs like how the salmon do in the northwest. The issue being addressed and investigated here, is what factors determine this behavior and to what effect? For example, do temperature changes lead them to decide to migrate? Does salinity or depth determine how far up the river they go? What correlates with the rivers where they are common versus therivers they avoid