Search for dissertations about: "urethane"

Showing result 1 - 5 of 15 swedish dissertations containing the word urethane.

  2. 1. Computer simulation of polymer reactions

    Author : Kersti Strandqvist; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; mathematical model; NMR; formation; DSC; vulcanization; SBR; kinetic parameters; urethane;

    Abstract : .... READ MORE

  4. 2. Biodegradable Thermoplastic Elastomers

    Author : Basse Asplund; Jöns Hilborn; Tim Bowden; Iskender Yilgör; Uppsala universitet; []
    Keywords : Chemistry; poly urethane ; poly urethane urea ; biomaterial; biodegradable; polymer; thermoplastic elastomer; haemocomatible; tissue engineering; biocompatible; Kemi;

    Abstract : A novel strategy for synthesising segmented poly(urethane urea) (PUU) without using a chain extender but nevertheless with the opportunity to vary the hard segment content has been developed. The strategy is based on amine formation from isocyanate upon reaction with water. READ MORE

  5. 3. Structure Dependent Chemical and Biological Interactions of Poly(urethane urea)s

    Author : Katrin Gisselfält; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; biomaterial; synthesis; hydrogen bonding; biological interactions; structure; properties; poly urethane urea ;

    Abstract : Poly(urethane urea)s, PUURs, are widely used in both industrial and biological applications because of excellent physical and mechanical properties and good biocompatibility in a variety of applications. Both the processing and the tailoring of specific properties of PUUR demand great knowledge of structure-property relationships. READ MORE

  6. 4. Studies of vinyl chloride, urethane, 1,2-dichloroethane and propene with respect to metabolism, covalent binding to macromolecule and genotoxic risk

    Author : Kettil Svensson; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : .... READ MORE

  7. 5. Amphiphilic Polymers as Additives in Biomedical Polyurethanes. Surface Properties and Morphology

    Author : Maria Kober; Centrum för analys och syntes; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; polymer micelles; phase separation; migration; poly ethylene oxide ; surface enrichment; morphology; polyurethane; additives; Surface modification; amphiphilic polymers; polymer blends; Polymer technology; biopolymers; Polymerteknik;

    Abstract : The aim of this work was to achieve surface modification of two biomedical polyurethanes and one poly(urethane urea) through the addition of small amounts of amphiphilic copolymers in solution. The matrix polymers used were the poly(ether urethane)s Pellethane 2363-80AE (P80) and 2363-75D (P75) and a poly(ether urethane urea) similar to Biomer (PUUR). READ MORE