Search for dissertations about: "Poly vinyl alcohol"

Showing result 1 - 5 of 25 swedish dissertations containing the words Poly vinyl alcohol.

  2. 1. Hydrogels of Poly(vinyl alcohol) and Nanocellulose for Ophthalmic Applications : Synthesis, Characterization, Biocompatibility and Drug Delivery Studies

    Author : Gopi Krishna Tummala; Albert Mihranyan; Natalia Ferraz; Cecilia Persson; Jonas Lindh; Che Connon; Uppsala universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; nanocellulose; poly vinyl alcohol ; hydrogel; cornea regeneration; therapeutic lens; Engineering Science with specialization in Nanotechnology and Functional Materials; Teknisk fysik med inriktning mot nanoteknologi och funktionella material;

    Abstract : Hydrogels are commonly used materials in ophthalmic care as contact lenses, bandage lenses, corneal implants, and cornea regeneration scaffolds. Hydrogels can be produced by physical, chemical, or radiation crosslinking of hydrophilic polymers. READ MORE

  4. 2. Diffusion in Poly(vinyl alcohol) and Polyethylene as Determined by Computational Simulations and Modeling

    Author : Gunnar Karlsson; KTH; []
    Keywords : Molecular dynamics; simulation; modeling; polymer; poly vinyl alcohol ; polyethylene; water; oxygen; limonene; solute; diffusion; transport properties;

    Abstract : Poly(vinyl alcohol) and polyethylene polymer systems werebuilt in order to study their transport properties (diffusion).First a verification of the AMBER force field was conducted fora poly(vinyl alcohol) system built from a chain with 145repeating units. NPT-molecular dynamics simulations attemperatures between 400 and 527 K were performed. READ MORE

  5. 3. Transport properties of poly(vinyl alcohol) determined by molecular dynamics simulation

    Author : Gunnar Karlsson; KTH; []
    Keywords : ;

    Abstract : .... READ MORE

  6. 4. Poly(vinyl alcohol)-coated papers : effects of surface characteristics of the substrate

    Author : Thomas Schuman; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : .... READ MORE

  7. 5. Effects of plasticizing and crosslinking on the mechanical and barrier properties of coatings based on blends of starch and poly(vinyl alcohol)

    Author : Asif Javed; Lars Järnström; Henrik Ullsten; Peter Rättö; Karlstads universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Citric acid; Glycerol; Polyethylene glycol; Barrier properties; Starch; Mechanical properties; Polyvinyl alcohol; Adhesion; Cross linking; Extrusion coating; Chemical Engineering; Kemiteknik;

    Abstract : In the last decades, intensive research has been carried out in order to replace oil-based polymers with bio-based polymers due to growing environmental concerns. So far, most of the barrier materials used in food packaging are petroleum-based materials. READ MORE