Structure-property relationships in polyimide-ionenes and composites with ionic liquids as gas separation membranes

dc.contributorTurner, Christoffer H.
dc.contributorRupar, Paul A.
dc.contributorWeinman, Steven T.
dc.contributorWujcik, Evan K.
dc.contributor.advisorBara, Jason E.
dc.contributor.authorDennis, Grayson Patrick
dc.contributor.otherUniversity of Alabama Tuscaloosa
dc.descriptionElectronic Thesis or Dissertationen_US
dc.description.abstractIonic polymers have capabilities to shape the pathway to new membranes and polymer systems that did not exist before. The imidazolium moiety has shown substantial abilities to integrate into a platform for ionic polymers allowing their growth and formation through imidazolium use as a building block. Addition of this component, both ionic and non-ionic, into a polymer matrix has been developed, but the creation of highly tunable, modular polymer structure that contains imidazolium has the potential to surpass previous iterations of ionic compounds and materials in gas separation. After developing a tailorable approach to high performance ionic polymers, we have formed ionic polyimides and polyamides that have been used for various applications such as gas separation, coatings, and films. The ionic polyimides and polyamides which were formed have the potential to be used as CO2/light gas membranes.The hardest factor to overcome within membrane separation is the flux-selectivity tradeoff which describes the upper limits of permeability, gases ability to flow through a membrane, and selectivity, one gas’s ability over another to permeate. With the addition of these ionic units into the backbone and as “free”-ILs within the polymer matrix, the permeabilities of these materials can be greatly increased. Through systematic design and study of materials, the structure-property relationship of these newly developed ionic polymers can be determined and applied to further the understanding of these unique polymer systems.en_US
dc.format.extent218 p.
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.subjectChemical engineering
dc.subjectMaterials science
dc.titleStructure-property relationships in polyimide-ionenes and composites with ionic liquids as gas separation membranesen_US
dc.typetext of Alabama. Department of Chemical and Biological Engineering & Biological Engineering University of Alabama
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