Liang, Shuai (2012) Reversible dispersion and releasing of single-walled carbon nanotubes by stimuli-responsive TTFV-Phenylacetylene Polymers and their derivatives. Masters thesis, Memorial University of Newfoundland.
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Carbon nanotubes (CNTs) have drawn considerable research attention owing to their unique properties and wide spectrum of applications in materials science. However, most applications of carbon nanotubes are still in preliminary stages due to the poor processibility of CNTs (e.g., low solubility and strong aggregation). To overcome this barrier, a class of tetrathiafulvalene vinylogues (TTFY) and phenylacetylene based conjugated polymers were designed and investigated. The polymer backbone can reversibly fold and unfold under the control of redox and acid/base stimuli. This conformational switching property has allowed the polymer to reversibly disperse and release single-walled carbon nanotubes (SWNTs) in organic solvents in a controlled manner, which in turn opens a new avenue for recyclable and non-destructive SWNT processing techniques. In addition, a series of TTFY polymers with various side chains were synthesized for comparative studies to understand the effect of polymer structure on the supramolecular interaction with SWNTs.
|Item Type:||Thesis (Masters)|
|Additional Information:||Includes bibliographical references (leaves 131-139).|
|Department(s):||Science, Faculty of > Chemistry|
|Library of Congress Subject Heading:||Nanotubes--Properties; Conjugated polymers--Synthesis; Conjugated polymers--Properties|
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