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A versatile design platform for multi-heterocyclic ionic liquid synthesis

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dc.contributorShaughnessy, Kevin H.
dc.contributorSnowden, Timothy S.
dc.contributorJennings, Michael P.
dc.contributorDrake, Gregory W.
dc.contributor.advisorRogers, Robin D.
dc.contributor.authorDrab, David Martin
dc.contributor.otherUniversity of Alabama Tuscaloosa
dc.date.accessioned2017-03-01T14:42:33Z
dc.date.available2017-03-01T14:42:33Z
dc.date.issued2011
dc.descriptionElectronic Thesis or Dissertationen_US
dc.description.abstractIonic liquids (ILs, briefly defined as salts exhibiting melting points below 100 degrees centrigrade) have been extensively researched in the past few decades, where properties controllable through selective variation in ion structure have supported a variety of discoveries in materials design. The modular combination of available `IL-forming' cations and anions provides retention of properties inherent to ILs such as low melting points, good thermal stability and negligible vapor pressure. Additionally, the dual-functional nature of ILs, whereby the design of functionalized ions is compartmentalized, can target specific physicochemical properties. Such transformable chemistry provides access to new design options from which contemporary problems in materials synthesis and applications may be strategically addressed. Due to the potential to reduce environmental health and safety hazards as well as access the systematic design of energetic materials, energetic ionic liquids (EILs) are identified as a class of materials which may afford new and improved alternatives to conventional propellants, explosives, and fuels. Rather than aiming to synthesize new energetic materials, the effort of this research was to develop a working knowledge of how to affect changes in EIL properties through modification of ion structure and composition, as well as to develop new design concepts that could provide effective strategies for future EIL synthesis. The approach to the investigations described here was two-fold, where the synthesis of EILs was achieved by either a conventional dual-functional strategy or multi-heterocyclic ionic liquid (MHIL) design. The main focus for this work includes (i) the synthesis ofN-cyanoalkyl-functionalized imidazolium salts with different energetic anions for examination of effects on IL thermal properties and reactivity, (ii) the conceptual development and experimental demonstration of a new design platform for MHIL synthesis with variable structure, charge, and symmetry, and (iii) the expansion of MHIL design to include new IL structures and to explore novel synthetic methodologies.en_US
dc.format.extent174 p.
dc.format.mediumelectronic
dc.format.mimetypeapplication/pdf
dc.identifier.otheru0015_0000001_0000630
dc.identifier.otherDrab_alatus_0004D_10636
dc.identifier.urihttps://ir.ua.edu/handle/123456789/1135
dc.languageEnglish
dc.language.isoen_US
dc.publisherUniversity of Alabama Libraries
dc.relation.hasversionborn digital
dc.relation.ispartofThe University of Alabama Electronic Theses and Dissertations
dc.relation.ispartofThe University of Alabama Libraries Digital Collections
dc.rightsAll rights reserved by the author unless otherwise indicated.en_US
dc.subjectOrganic chemistry
dc.subjectInorganic chemistry
dc.titleA versatile design platform for multi-heterocyclic ionic liquid synthesisen_US
dc.typethesis
dc.typetext
etdms.degree.departmentUniversity of Alabama. Department of Chemistry
etdms.degree.disciplineChemistry
etdms.degree.grantorThe University of Alabama
etdms.degree.leveldoctoral
etdms.degree.namePh.D.

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