Sökning: "liquid crystalline"

Visar resultat 1 - 5 av 132 avhandlingar innehållade orden liquid crystalline.

1. 1. Devlopment and relaxation of orientation in liquid crystalline polymers : transport properties of liquid crystalline polymer blends

   Författare :Göran Wiberg; KTH; []
   Nyckelord :;

   Sammanfattning : In this thesis different types of liquid crystallinepolymers have been investigated with respect to build up andrelaxation of orientation. The potential of making new barriermaterials using liquid crystalline polymer blends was alsostudied. LÄS MER

3. 2. Interfacial Properties of Lipid Liquid Crystalline Nanoparticles

   Författare :Pauline Vandoolaeghe; Fysikalisk kemi; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; interaction; adsorption; surface; peptide; bilayer; cubic phase; monoolein; cubosome; lipid; liquid crystalline nanoparticles; ellipsometry; neutron reflectivity; QCM-D; SAXD;

   Sammanfattning : Lipid liquid crystalline nanoparticles are studied for their potential as biocompatible carriers for pharmaceutical, food and cosmetic applications. Their potential as delivery vehicles is due to their nanometer size, their controllable structure and physical properties and their large carrying capacity of a wide range of molecules. LÄS MER

4. 3. NMR diffusion studies on lyotropic liquid crystalline systems

   Författare :Greger Orädd; Frank Volke; Umeå universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Diffusion; pulsed field gradient; liquid crystalline systems; lipid lateral diffusion; cubic phases; peptide-lipid interactions; hydrophobic mismatch; permeability;

   Sammanfattning : The pulsed field gradient fourier transform nuclear magnetic resonance (PFG-FTNMR) method to measure translational diffusion coefficients in multicomponent systems has been applied to amphiphilic molecules forming liquid crystalline phases.By analyzing the concentration dependence of the diffusion coefficients of water and amphiphile in a micellar system of N,N-dimethyldodecy lamine oxide (DDAO) in water it was possible to conclude that the micelles formed were polydisperse in size and shape. LÄS MER

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

   Författare :Eivor Neikter; Chalmers tekniska högskola; []
   Nyckelord :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;

   Sammanfattning : .... LÄS MER

7. 5. Barrier Properties of Liquid Crystalline Polymers and their Blends with PE and PETP

   Författare :Göran Flodberg; KTH; []
   Nyckelord :Blends; polyethylene; poly ethylene terephthalate ; liquid crystalline polymers; Vectra; barrier properties; morphology; pouches; sealing; migration; high performance liquid chromatography; HPLC ;

   Sammanfattning : .... LÄS MER