Dissolution and processing of cellulosic materials with ionic liquids: fundamentals and applications

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dc.contributor Street, Shane C.
dc.contributor Cassady, Carolyn J.
dc.contributor Gupta, Arunava
dc.contributor Brazel, Christopher S.
dc.contributor.advisor Rogers, Robin D.
dc.contributor.author Sun, Ning
dc.date.accessioned 2017-03-01T14:38:09Z
dc.date.available 2017-03-01T14:38:09Z
dc.date.issued 2010
dc.identifier.other u0015_0000001_0000518
dc.identifier.other Sun_alatus_0004D_10569
dc.identifier.uri https://ir.ua.edu/handle/123456789/1023
dc.description Electronic Thesis or Dissertation
dc.description.abstract With the inevitable depletion of petroleum-based resources, there has been an increasing worldwide interest in renewable resources such as biomass. One reason for the current approaches being taken to utilize biomass is the difficulty in processing lignocellulosic materials and the energy needed for separation of the components. The three major components of biomass are covalently bonded together, which makes dissolution and further separation of the three major components difficult and this has been recognized as the grand challenge for biomass utilization. This dissertation describes research efforts in processing of lignocellulosic biomass using ionic liquids (ILs) as solvents. ILs are salts with melting points below 100 oC, which possess many advantage properties. Cellulose composite fibers have been prepared based on IL solution with dispersion of the additives. Wood and bagasse have been completely dissolved in ILs. Partial separation of the components has been obtained using selected reconstitution solvents. High temperature and fast dissolution was found to be an efficient method for both dissolution and separation of biomass components. Biomass composite fibers can be prepared directly from such biomass solutions. With selected catalysts in solution, improved dissolution and separation has been achieved, making the delignification and pulp yield comparable to the kraft pulping process.
dc.format.extent 207 p.
dc.format.medium electronic
dc.format.mimetype application/pdf
dc.language English
dc.language.iso en_US
dc.publisher University of Alabama Libraries
dc.relation.ispartof The University of Alabama Electronic Theses and Dissertations
dc.relation.ispartof The University of Alabama Libraries Digital Collections
dc.relation.hasversion born digital
dc.rights All rights reserved by the author unless otherwise indicated.
dc.subject.other Polymer Chemistr
dc.title Dissolution and processing of cellulosic materials with ionic liquids: fundamentals and applications
dc.type thesis
dc.type text
etdms.degree.department University of Alabama. Dept. of Chemistry
etdms.degree.discipline Chemistry
etdms.degree.grantor The University of Alabama
etdms.degree.level doctoral
etdms.degree.name Ph.D.


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