Eric Fossum (Advisor), Paul Seybold (Committee Member), Kenneth Turnbull (Committee Member)
Master of Science (MS)
AB3 monomer (3,4,5-Trifluoro-4'-hydroxybenzophenone) was used for polymerizations in order to mimic the combination of AB and AB2 monomers, and which has potential to facilitate concurrent polymerization and functionalization. 'Pre' and 'post' polymerization functionalization of the PEK system was done using phenol, 4-bromophenol, and 3/4-aminophenol. The solubility of the functionalized polymers was increased; and the crystallinity was decreased significantly compared to the corresponding unfunctionalized homopolymer. The polymers were characterized by 1H and 13C NMR spectroscopy, Gel Permeation Chromatography (GPC), Thermogravimetric Analysis (TGA), and Differential Scanning Calorimetry (DSC). DSC results showed that the crystallinity of the polymer was tuned by the amount of functionalizing agent used. The homopolymer was highly crystalline and the crystallinity decreased as the amount of the functionalizing agent increased. When greater than 50 mol % of the functionalizing agent was utilized, the materials became completely amorphous.
Department or Program
Department of Chemistry
Year Degree Awarded
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