Bio-based polymeric materials from vegetable oils

dc.contributor.advisor Michael R. Kessler
dc.contributor.author Chen, Ruqi
dc.contributor.department Materials Science and Engineering
dc.date 2018-08-11T11:29:36.000
dc.date.accessioned 2020-06-30T02:51:37Z
dc.date.available 2020-06-30T02:51:37Z
dc.date.copyright Wed Jan 01 00:00:00 UTC 2014
dc.date.embargo 2014-10-14
dc.date.issued 2014-01-01
dc.description.abstract <p>Vegetable oils have been utilized in developing various types of bio-based materials in my research work.</p> <p>Bio-based polyhydroxy fatty acids have been subject to ring-opening epoxidized soybean oil with alkaline catalyst DBU to generate polyols with varying OH numbers. Polyurethane films were obtained using these polyols polymerized with isophrone diisocyanates. The polyhydroxy fatty acids were also used as internal emulsifiers in anionic polyurethane dispersion synthesis due to the presence of carboxylic acid groups in their structures. In addition, acrylated epoxidized soybean oil was involved in another project. 2-methyl aziridine was added to acrylic groups via Michael addition mechanism under mild conditions. The resulting aziridine-containing compound could be polymerized with bio-based polyacids rapidly at room temperature. Plus, thermal polymerization of soybean oil has been studied. The heat-bodied soybean oils were subject to ozonolysis followed by reduction in order to produce polyols with primary hydroxyls, which are relatively reactive.</p> <p>The principle of the research is to develop products with considerably high bio-content. The soaring price of petroleum has become a global issue so that industry and academia have been seeking bio-renewable substitutions which can be potentially converted to versatile products that have comparable properties to petroleum-based merchandise.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/etd/13709/
dc.identifier.articleid 4716
dc.identifier.contextkey 5777405
dc.identifier.doi https://doi.org/10.31274/etd-180810-554
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath etd/13709
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/27896
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/etd/13709/Chen_iastate_0097E_14115.pdf|||Fri Jan 14 19:59:22 UTC 2022
dc.subject.disciplines Chemistry
dc.subject.disciplines Mechanics of Materials
dc.subject.disciplines Polymer Chemistry
dc.subject.keywords Aziridine
dc.subject.keywords Bio-based
dc.subject.keywords Polymer
dc.subject.keywords Polyol
dc.subject.keywords Polyurethane
dc.subject.keywords Vegetable Oil
dc.title Bio-based polymeric materials from vegetable oils
dc.type article
dc.type.genre dissertation
dspace.entity.type Publication
relation.isOrgUnitOfPublication bf9f7e3e-25bd-44d3-b49c-ed98372dee5e
thesis.degree.level dissertation
thesis.degree.name Doctor of Philosophy
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