Search for dissertations about: "thermotropic"

Showing result 1 - 5 of 13 swedish dissertations containing the word thermotropic.

  2. 1. Ternary Block Copolymer Systems - Phase Behaviour and Phase Structure

    Author : Birgitta Svensson; Fysikalisk kemi; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Theoretical chemistry; lyotropic; thermotropic; SANS; SAXS; scattering; semicrystalline; reverse micelle; micellar solution; liquid crystalline; phase diagram; phase behaviour; block copolymer; pluronic; poly ethylene oxide ; poly propylene oxide ; quantum chemistry; Teoretisk kemi; kvantkemi;

    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

  4. 2. Fibre spinning from a thermotropic liquid crystalline polymer

    Author : Eivor Neikter; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; high shear rate; low draw ratio; structural studies; melt spun fibres; hydroxybenzoic acid and hydroxynaphthoic acid; thermotropic liquid crystalline polymer; tensile properties;

    Abstract : .... READ MORE

  5. 3. Nuclear magnetic resonance studies of thermotropic liquid crystals

    Author : Dick Sandström; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : .... READ MORE

  6. 4. Studies on phototropic and thermotropic responses in the coleoptiles of Avena sativa

    Author : Carl Erman; Stockholms högskola; []
    Keywords : ;

    Abstract : .... READ MORE

  7. 5. Mechanical Properties of Liquid Crystal Polymer Fibres

    Author : Eivor Neikter; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; copolymer hydroxybenzoic acid; thermotropic liquid crystalline polymers; polyethylene terephthalate; mechanical properties; hydroxybenzoic acid;

    Abstract : Fibres of thermotropic liquid crystalline polymers (LCP) and its blends containing a random coil polymer LCP have been spun at low draw ratio at different temperatures and shear rates. Their mechanical properties have been studied in detail. READ MORE