Current Search: Undergraduate Honors Theses (x) » Understanding the Phenomenologies of Poly(vinylpyridine) Containing Block Polymers (x)
-
-
Title
-
Understanding the Phenomenologies of Poly(vinylpyridine) Containing Block Polymers.
-
Creator
-
Dunoyer de Segonzac, Beatriz, Kennemur, Justin G
-
Abstract/Description
-
Diblock copolymers are a subset of polymer materials that display complex properties such as self-assembly, which is governed by the degree of polymerization, the volume fractions of each block, and the Flory-Huggins interaction parameters between each block.3,5 The Flory-Huggins interaction parameter (χ) is a thermodynamic quantity encompassing the favorable (or disfavorable) free energy of mixing between block copolymer segments. Throughout the research conducted, the properties of poly...
Show moreDiblock copolymers are a subset of polymer materials that display complex properties such as self-assembly, which is governed by the degree of polymerization, the volume fractions of each block, and the Flory-Huggins interaction parameters between each block.3,5 The Flory-Huggins interaction parameter (χ) is a thermodynamic quantity encompassing the favorable (or disfavorable) free energy of mixing between block copolymer segments. Throughout the research conducted, the properties of poly(vinylpyridine) containing systems were explored. Quaternization of poly(4-vinylpyridine) (P4VP) was conducted in order to then quaternize diblock copolymers containing P4VP and poly(ethylene oxide) (PEO). As χ is not known for this particular system, these diblocks were then used to attempt to find the χ and observe the changes quaternization has on said parameter. Small-angle x-ray scattering (SAXS) analysis was used to probe microphase separation, however, upon observing no separation in the desired polymers, possible complications associated with decomposition of the polymers through the trithiocarbonate end group were identified. Techniques were performed to remove this end group to potentially improve thermal stability.
Show less
-
Date Issued
-
2018-04-24
-
Identifier
-
FSU_libsubv1_scholarship_submission_1524619844_888a6096
-
Format
-
Thesis
