Search for dissertations about: "biopolymers"
Showing result 1 - 5 of 100 swedish dissertations containing the word biopolymers.
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1. Adsorption of biopolymers and their layer-by-layer assemblies on hydrophilic surfaces
University dissertation from Stockholm : KTHAbstract : It is widely known that surfaces play an important role in numerous biological processes and technological applications. Thus, being able to modify surface properties provides an opportunity to control many phenomena occurring at interfaces. READ MORE
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2. Free Volume Depth Profiling at Polymer Surfaces and Interfaces
University dissertation from Birgitta Ryd, Polymer Science & Engineering, Center for Chemistry and Chemical Engineering, LundAbstract : Pulsed low energy positron beams provide a unique and non-destructive tool to depth probe the free volume of polymers at surfaces and interfaces. Since the employment of low energy positron beams in polymer research is an emerging technique, some focus in this thesis has been on extracting methods and equations needed to interpret the experimental data. READ MORE
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3. Asymmetrical Flow Field-Flow Fractionation and Multiangle Light Scattering for Molar Mass Analysis of Polysaccharide Derivatives
University dissertation from Mats Andersson, Technical Analytical Chemistry, Center for Chemistry and Chemical Engineering, Lund University, Lund, SwedenAbstract : Molar mass and molar mass distribution of polymers are parameters of fundamental importance as they influence the performance of the polymer in applications. Polysaccharide derivatives are a class of polymers that have attracted significant scientific and commercial interest as they can be manufactured from a wide range of abundant sources in nature and thereby often are both cheap and biocompatible. READ MORE
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4. Oxidative Degradation of Polyethylene - A Cause of Off-flavour
University dissertation from Thorbjörn Andersson, Tetra Pak R&D AB, SE- 22186 Lund, SwedenAbstract : Polyethylene is the most frequently used polymer material in food packaging today. The polymer is often processed by film extrusion and extrusion coating between 250°C and 325°C. READ MORE
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5. Polymer Displacement and Supermacroporous Cryogels - Two New Tools in Chromatographic Separation of Biomolecules and Bioparticles
University dissertation from Department of Biotechnology, Lund UniversityAbstract : Production of protein is often accompanied with difficulties due to the large amounts of different biological material resulting from fermentation. This makes purification necessary and affinity chromatography is usually involved as being biospecific, although suffering from limitations as low recovery due to ineffective elution and inability to handle particulate materials. READ MORE
