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dc.contributor.authorCai, Zhaohui 18:44:37 (GMT) 18:44:37 (GMT)
dc.description.abstractA stable glass, distinguished from an ordinary glass, has phenomenal characteristics such as a high density and a high kinetic stability. In this project, stable glasses of poly(methyl methacrylate) (PMMA) are produced by physical vapor deposition (PVD), and the dielectric responses of the vapor-deposited PMMA glasses are measured at 1 kHz with a high precision capacitance bridge. Measurements of the dielectric loss and storage have been done by heating and cooling the vapor-deposited PMMA glasses, where the heating and cooling cycles are used to rejuvenate the vapor-deposited PMMA glasses and to directly compare stable and nominally rejuvenated glasses. A noticeable suppression in β relaxation peak could be observed in the dielectric loss curve for vapor-deposited glasses (stable glasses) as compared to that for rejuvenated glasses (ordinary glasses). This finding implies that the glass stability essentially influences the dielectric relaxation.en
dc.publisherUniversity of Waterlooen
dc.titleDielectric Measurement and Analysis of Ultrastable PMMA Glassen
dc.typeMaster Thesisen
dc.pendingfalse and Astronomyen (Nanotechnology)en of Waterlooen
uws-etd.degreeMaster of Scienceen
uws.contributor.advisorForrest, James
uws.contributor.affiliation1Faculty of Scienceen

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