Search for dissertations about: "polystyrene"
Showing result 1 - 5 of 120 swedish dissertations containing the word polystyrene.
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1. On Defect Generation and the Appearance of Injection-Moulded Polymers
Abstract : This thesis addresses the generation of some important manufacturing defects associated with intrinsic limitations of the injection moulding process. These include bulk-surface structural discontinuities, particularly air traps and welds, bulk-surface compositional inhomogeneities and gloss and colour variations. READ MORE
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2. Preparation and Compatibilizing Properties of Poly(styrene-graft-ethylene oxide) in Polymer Blends
Abstract : One of the main trends in the polymer industry today is the increasing importance of polymer blends. Combining two or more immiscible polymers in a polymer blend often leads to multi-phase materials with desirable properties. READ MORE
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3. Understanding hazards of nanoplastics using Daphnia magna
Abstract : This thesis presents the results of studies focused on effects caused by nano-sized particles using freshwater filter feeder Daphnia magna. I showed that both positively and negatively surface charged PS NPs induced significant mortality in D. magna after a life-time (103 days) of exposure at low concentrations. READ MORE
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4. Polymer Ionic Materials: A Study of new Materials for Solid Polymer Fuel Cells and Rechargeable Polymer Batteries
Abstract : Ion-containing polymeric materials are interesting for use in a wide variety of applications, where the flexible, yet mechanically stable, polymer matrix is essential. Intensive research is presently going on worldwide for applications as electrolytes in solid polymer batteries and fuel cells, where the ion-conducting polymer also serves as an electrode separator. READ MORE
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5. The glass transition and dynamics of thin polymer films
Abstract : .... READ MORE