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Adsorbed polymer nanolayers on solids: mechanism, structure and applications

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dc.contributor.advisor Koga, Tadanori en_US
dc.contributor.author Sen, Mani Kuntal en_US
dc.contributor.other Department of Materials Science and Engineering en_US
dc.date.accessioned 2017-09-20T16:49:51Z
dc.date.available 2017-09-20T16:49:51Z
dc.date.issued 2017-05-01 en_US
dc.identifier.uri http://hdl.handle.net/11401/76257 en_US
dc.description 109 pgs en_US
dc.description.abstract In this thesis, by combining various advanced x-ray scattering, spectroscopic and other surface sensitive characterization techniques, I report the equilibrium polymer chain conformations, structures, dynamics and properties of polymeric materials at the solid-polymer melt interfaces. Following the introduction, in chapter 2, I highlight that the backbone chains (constituted of CH and CH2 groups) of the flattened polystyrene (PS) chains preferentially orient normal to the weakly interactive substrate surface via thermal annealing regardless of the initial chain conformations, while the orientation of the phenyl rings becomes randomized, thereby increasing the number of surface-segmental contacts (i.e., enthalpic gain) which is the driving force for the flattening process of the polymer chains even onto a weakly interactive solid. In chapter 3, I elucidate the flattened structures in block copolymer (BCP) thin films where both blocks lie flat on the substrate, forming a 2D randomly phase-separated structure irrespective of their microdomain structures and interfacial energetics. In chapter 4, I reveal the presence of an irreversibly adsorbed BCP layer which showed suppressed dynamics even at temperatures far above the individual glass transition temperatures of the blocks. Furthermore, this adsorbed BCP layer plays a crucial role in controlling the microdomain orientation in the entire film. In chapter 5, I report a radically new paradigm of designing a polymeric coating layer of a few nanometers thick (polymer nanolayer) with anti-biofouling properties. en_US
dc.description.sponsorship This work is sponsored by the Stony Brook University Graduate School in compliance with the requirements for completion of degree. en_US
dc.format Monograph en_US
dc.format.medium Electronic Resource en_US
dc.language.iso en_US en_US
dc.publisher The Graduate School, Stony Brook University: Stony Brook, NY. en_US
dc.subject.lcsh Polymer chemistry -- Materials Science -- Physics en_US
dc.subject.other Adsorbed layer, Flattened layer, Nano-confinement, Polymer physics, Polymer thin films, X-ray scattering en_US
dc.title Adsorbed polymer nanolayers on solids: mechanism, structure and applications en_US
dc.type Dissertation en_US
dc.mimetype Application/PDF en_US
dc.contributor.committeemember Sokolov, Jonathan en_US
dc.contributor.committeemember Yager, Kevin G en_US
dc.contributor.committeemember Nam, Chang-Yong en_US
dc.contributor.committeemember Koga, Tadanori en_US

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