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dc.contributor.authorSu, Xin
dc.contributor.otherQueen's University (Kingston, Ont.). Theses (Queen's University (Kingston, Ont.))en
dc.date.accessioned2017-09-25T21:52:56Z
dc.date.available2017-09-25T21:52:56Z
dc.identifier.urihttp://hdl.handle.net/1974/22748
dc.description.abstractCO2-switchable materials use CO2 as the trigger. Their mechanism is the reversible protonation of tertiary amines or amidines in aqueous solution, in the absence or presence of CO2. The application of CO2-switchable materials is also useful in other areas of polymer chemistry, such as ATRP (Atom Transfer Radical Polymerization) and the preparation of polymer latexes. Firstly, CO2-switchable ligands, solvents and photo-catalyst were used individually or jointly to recycle ligands and purify polymer made by ATRP. Secondly, artificial polymer latexes, such as poly(butyl methacrylate) (PBMA), were separately prepared from bulk polymers using the CO2-switchable solvents. The joint use of the two approaches mentioned above can produce polymer latexes with controlled molecular weight, but without impurities such as ligand or metal catalyst. Also, a new benign means was developed for reversibly breaking emulsions and latexes using CO2-switchable water, an aqueous solution of switchable ionic strength. Furthermore, living CO2-switchable PMMA latexes were prepared using reverse ATRP emulsion polymerization and AGET ATRP miniemulsion polymerization; the prepared latexes can be switched between the aggregated and dispersed states using only CO2 as the trigger.en_US
dc.language.isoenen_US
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.subjectATRPen_US
dc.subjectCarbon Dioxideen_US
dc.subjectEmulsionen_US
dc.subjectPolymer Latexen_US
dc.subjectSurfactanten_US
dc.titleDevelopment of CO2-Switchable Technologies for Polymer-Based Applicationsen_US
dc.typeThesisen
dc.description.degreeDoctor of Philosophyen_US
dc.contributor.supervisorCunningham, Michael
dc.contributor.supervisorJessop, Philip
dc.contributor.departmentChemical Engineeringen_US


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