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dc.contributor.authorMah, Zacen
dc.date.accessioned2017-10-02T15:39:00Z
dc.date.available2017-10-02T15:39:00Z
dc.identifier.urihttp://hdl.handle.net/1974/22816
dc.description.abstractGraft copolymers of poly(ethylenimine) (PEI) and poly(dimethylsiloxane) (PDMS) were synthesized and used to coat cotton fabrics with the use of poly(ethylene glycol) diglycidyl ether as a crosslinker. The copolymer was applied to the fabrics via a CHCl3 solution, and secured on the surface by a network of epoxy-amine bonds between the PEI and crosslinker units. The coated fabrics were used to separate and recover oil from surfactant-stabilised, oil-in-water emulsions. The composition of the graft copolymer and obtained coating solutions was varied to determine the effects on separation performance and repeatability. Optimal oil flux and recovery was obtained from coatings composed of high molecular-weight PEI which contained a high percentage of grafted PDMS units. Highly-crosslinked coatings demonstrated repeatable and consistent separation performance, and were able to recover the vast majority of emulsified oil from hexadecane-in-water emulsions stabilized by sodium dodecyl sulfate (SDS). The de-emulsification properties of the optimized coatings may facilitate their use in wastewater remediation or oil recovery from contaminated environments.en
dc.language.isoengen
dc.relation.ispartofseriesCanadian thesesen
dc.rightsQueen's University's Thesis/Dissertation Non-Exclusive License for Deposit to QSpace and Library and Archives Canadaen
dc.rightsProQuest PhD and Master's Theses International Dissemination Agreementen
dc.rightsIntellectual Property Guidelines at Queen's Universityen
dc.rightsCopying and Preserving Your Thesisen
dc.rightsThis publication is made available by the authority of the copyright owner solely for the purpose of private study and research and may not be copied or reproduced except as permitted by the copyright laws without written authority from the copyright owner.en
dc.subjectfiltrationen
dc.subjectoil/water separationen
dc.subjectJanus fabricen
dc.subjectcoatingsen
dc.subjectpolymersen
dc.subjectsurfactantsen
dc.subjectstimuli-responsive polymersen
dc.subjectsurface chemistryen
dc.titleCotton Fabrics Modified Using a Graft Copolymer From Commercial Precursors for Oil/Water Emulsion Separationen
dc.typethesisen
dc.description.degreeM.Sc.en
dc.contributor.supervisorLiu, Guojunen
dc.contributor.departmentChemistryen
dc.degree.grantorQueen's University at Kingstonen


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