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Surface properties of polymeric surfactantsCourt, Colin Edwin, University of Western Sydney, College of Science, Technology and Environment January 2001 (has links)
Polystyrenes with carboxyl end-groups (PS-COOH)and poly (tert-butyl acrylates) (PtBA) of different molar mass were synthesised by anionic polymerisation using n-butyllithium as the initiator. Gel permeation chromatography (GPC) was used to calculate the molecular weight and polydispersity of these polymers. The tacticity of these polymers was determined using Carbon 13 Nuclear Magnetic Resonance Spectroscopy (13C NMR). FT-IR was used to confirm the tacticity of the samples. Matrix-assisted laser desorption ionisation time-of-flight mass spectrometry (MALDI-TOF) was used to confirm the presence of the carboxyl end-groups. All of the films studied in this project were transferred to mica substrates using the Langmuir-Blodgett deposition method. Both single layer and multiple layer films were constructed using this technique. Atomic force microscopy (AFM) was used to observe the surface topology of these films. / Doctor of Philosophy (PhD) (Science)
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Elution of adsorbed proteins at hydrophobic and hydrophilic surfaces by dodecyltrimethylammonium bromide and sodium dodecyls sulfateVinaraphong, Pravina 27 September 1995 (has links)
Adsorption kinetic data recorded for α-lactalbumin, β-casein, β-lactoglobulin, bovine
serum albumin and lysozyme at silianized silica surfaces of low and high hydrophobicity,
along with a simple model for adsorption and surfactant-mediated elution of protein, were
used to analyze the removal of each protein by sodium dodecylsulfate (SDS) and
dodecyltrimethylammonium bromide (DTAB) at each surface. The model relates
resistance to surfactant elution to two rate constants: one governing conversion of
removable protein to a nonremovable form (s₁), and one governing removal of protein by
the surfactant (k [subscript s]). Elution of each protein from hydrophobic silica with SDS was
interpreted as providing information relevant to protein-surface binding strength, or si;
i.e., protein-specific differences in removal were a result of SDS adsorption to the surface
and displacement of surface-bound protein, as opposed to solubilization driven by SDS
binding to the protein. SDS-mediated removal of protein from surfaces of lower
hydrophobicity were interpreted as generally proceeding according to a similar,
displacement mechanism. The model indicated that data recorded for DTAB-mediated
elution at each surface were generally less representative of protein-surface behavior, and
more a function of k [subscript s], where differences in surfactant attachment to protein and
solubilization appeared to play an important role in protein removal. Under controlled
conditions use of the model would allow identification of cases where k [subscript s] in particularly
protein specific, and illustrates the point that in such cases surfactant-mediated elution of a
protein may reveal little about its surface behavior. / Graduation date: 1996
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A mechanistic study of the distribution of amphiphilic organic compounds between water and organic sorbentsZhang, Wanjia 10 January 1991 (has links)
Graduation date: 1991
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A study of the solubilization of compounds of the types found in the resinous fraction of wood pulps.Wiseman, William Howard 01 January 1958 (has links)
No description available.
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Emulsion polymerization of styrene using a reactive surfactant /Wang, Xiaoru, January 2000 (has links)
Thesis (Ph. D.)--Lehigh University, 2000. / Includes bibliographical references and vita.
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Amphiphile mesostructures /Christopher, Peter S. January 2003 (has links)
Thesis (Ph. D.)--University of Chicago, December 2003. / Includes bibliographical references. Also available on the Internet.
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Studies of particle interactions in latexesHomola, Andrew M. January 1974 (has links)
No description available.
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The effect of pretreatment steps on the mechanical dewatering of fuel-grade peat /Eccles, Errol R. A. (Errol Ray Antonio) January 1986 (has links)
No description available.
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The production of surfactin by Bacillus subtilis /Moresoli, Christine. January 1985 (has links)
No description available.
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Enzymatic activity, in desizing textiles, as influenced by biodegradability and molecular structure of companion surfactantsAdams, Morgan Douglas January 1969 (has links)
No description available.
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