Title page for ETD etd-07282008-134515
|Type of Document
||Engen, Paul Todd
||Novel polymer architectures :polyrotaxanes
|Gibson, Harry W.
|Riffle, Judy S.
|Bell, Harold M.
|Ward, Thomas C.
|Wilkes, Garth L.
|Date of Defense
Although the synthesis of polymers with highly controlled molecular
architectures has gained increased importance due to the rising demand for specialty
polymers that possess novel properties, their physical characteristics are direct
consequences of the size and constitution of the covalent structures of the polymer. Our
program aims to prepare and characterize polymers, whose structures and properties
are determined by non-covalent interactions. These novel polymer architectures are
comprised of macrocycles threaded by linear macromolecules and are called
polyrotaxanes. Polyrotaxanes are considered to be physical analogs of block or graft
copolymers or molecular interpenetrating systems. The design and synthesis of the
macrocyclic component, "blocking groups" to constrain the macrocycles and the
polyrotaxane will be described.
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