Search for dissertations about: "propylene"
Showing result 6 - 10 of 78 swedish dissertations containing the word propylene.
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6. Ternary Block Copolymer Systems - Phase Behaviour and Phase Structure
Abstract : Ternary isothermal (25°C) polyoxyalkylene triblock block copolymer ((EO)x(PO)y(EO)x where x is the number of ethylene oxide, EO, segments and y is the number of propylene oxide, PO, segments) systems with water and p-xylene as selective solvents for the PEO and PPO blocks, respectively, were chosen as study systems in this thesis as these ternary systems are good model systems for the self-assembly of block copolymers. The phase behaviour has been studied at varied block copolymer molecular weight and relative PEO/PPO block ratio. READ MORE
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7. Neutron Scattering Experiments and Computer Simulation Studies of a Polymer Electrolyte
Abstract : Polymer electrolytes are regarded as key components in promising new types of batteries for portable electronic devices and electric cars. Batteries for such applications require polymer electrolytes with improved properties, e.g. a higher ionic conductivity. READ MORE
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8. Ternary Block Copolymer - Water - "Oil" Systems: Effects of "Oil" Type and Block Size on Phase Behaviour and Structure
Abstract : It has recently been established in our group that amphiphilic block copolymers consisting of a hydrophilic and a hydrophobic part can self-assemble in the presence of selective solvents (“water” and “oil”) into a variety of different solution and lyotropic liquid crystalline microstructures. The effects of the “oil” type, hydrophilic block size and hydrophobic block type on the phase behavior and microstructure of ternary isothermal copolymer - oil - water systems have been addressed in this thesis. READ MORE
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9. Neutron scattering and reverse Monte Carlo simulation studies of a polymer electrolyte, PPO-LiClO4
Abstract : .... READ MORE
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10. 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