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Adsorption of polybutadiene from the melt onto solid substrates

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dc.contributor.advisor Koga, Tadanori en_US
dc.contributor.author ZEXI, HAN en_US
dc.contributor.other Department of Materials Science and Engineering en_US
dc.date.accessioned 2013-05-22T17:35:52Z
dc.date.accessioned 2015-04-24T14:47:41Z
dc.date.available 2013-05-22T17:35:52Z
dc.date.available 2015-04-24T14:47:41Z
dc.date.issued 2012-05-01
dc.identifier ZEXI_grad.sunysb_0771M_10931 en_US
dc.identifier.uri http://hdl.handle.net/1951/59932 en_US
dc.identifier.uri http://hdl.handle.net/11401/71472 en_US
dc.description 40 pg. en_US
dc.description.abstract In this paper, adsorbed polybutadiene (PB) layers onto solid substrates have been studied with two different molecular weights and different terminated groups. Spin cast PB film (originally around 25 nm in thickness) prepared on two kinds of preconditioning (with and without HF etch) in silicon substrates. The samples were annealed at 150??C for 10 h under vacuum and subsequently rinsed with toluene (a good solvent for PB) extensively. The residual PB layers were characterized by using X-ray reflectivity, and the result showed that the adsorbed layers were well fitted by a 3-layer (a silicon substrate, a native oxide, a polymer layer) model for non-end functionalized PB and a 4-layer model (a silicon substrate, a native oxide, a high density polymer layer and low density polymer layer) for hydroxyl PB adsorbed layer, respectively. Further experiments using supercritical carbon dioxide (scCO2) as a screen solvent proved that the interfacial energy is a key to explain the difference in the structures between the two polybutadiene adsorbed layers. 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 Materials Science en_US
dc.title Adsorption of polybutadiene from the melt onto solid substrates en_US
dc.type Thesis en_US
dc.mimetype Application/PDF en_US
dc.contributor.committeemember Sokolov, Jonathon en_US
dc.contributor.committeemember Venkatesh, T.A. en_US


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