Search for dissertations about: "acrylonitrile"

Showing result 6 - 10 of 23 swedish dissertations containing the word acrylonitrile.

  2. 6. Hemoglobin dosimetry and comparative toxicity of acrylamide and its metabolic glycidamide

    Author : Emma Bergmark; Stockholms universitet; []
    Keywords : ;

    Abstract : Hemoglobin is a useful in vivo dosimeter for electrophilic compounds that react with nucleophilic sites in macromolecules and form covalently bound adducts. With the purpose of increasing the sensitivity of analysis of haemoglobin adducts, a method was developed for enriching adducted globin chains based on ion-exchange chromatography. READ MORE

  4. 7. Free Volume Determination in Polymers and Polymer Blends

    Author : Camilla Wästlund; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; positronium formation; crystallinity; polymer blends; inhibition; polymers; free volume; positron annihilation; phase separation; distribution;

    Abstract : The free volume of a polymer, which corresponds to the unoccupied regions accessible to segmental motions, is an important parameter for understanding and predicting many of its characteristic properties. The concept of free volume is the basis for understanding the molecular mobility in polymers. READ MORE

  5. 8. Exploring bio-based and biodegradable polymers: free-radical polymerization, hydrolysis and applications

    Author : Maryam Mousa; Eva Malmström; Magnus Jonsson; Anna Larsson Kron; Seema Agarwal; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Bio-based polymers; biodegradation; branched polyesters; thermally expandable microspheres; copolymerization; Fiber- och polymervetenskap; Fibre and Polymer Science;

    Abstract : Increasing concerns regarding the depletion of fossil-based resources and theaccumulation of plastic waste in the environment have resulted in extensiveresearch aimed at finding more sustainable alternatives to today’s plastics.In this work, bio-based and biodegradable polymers have been synthesizedusing free-radical polymerization in homogeneous and heterogeneoussystems. READ MORE

  6. 9. Thermally Expandable Microspheres Prepared via Suspension Polymerization - Synthesis, Characterization, and Application

    Author : Magnus Jonsson; Eva Malmström Jonsson; Søren Hvilsted; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Thermally expandable microspheres; Polymer chemistry; Polymerkemi;

    Abstract : Thermally expandable microspheres are polymeric core/shell particles in which a volatile hydrocarbon is encapsulated by a thermoplastic shell. When these microspheres are heated, they expand and increase their volume dramatically. READ MORE

  7. 10. In vivo dosimetry of some important industrial chemicals by measurement of their reaction products with hemoglobin

    Author : Hermes Licea Pérez; Åke Bergman; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Physical Biology; fysikalisk biologi;

    Abstract : Hemoglobin adduct measurements provide a useful tool for the development of models for risk assessment of chemicals. The measurements can be used to identify reactive metabolites and to determine the in vivo doses of these metabolites. READ MORE