Sökning: "copolymers"

Visar resultat 1 - 5 av 131 avhandlingar innehållade ordet copolymers.

  1. 1. Crosslinking of Ethylene Copolymers

    Detta är en avhandling från Chalmers University of Technology

    Författare :Magnus Palmlöf; Chalmers tekniska högskola.; Chalmers University of Technology.; [1989]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Teknisk materialvetenskap; Materials science; polyethylene; ethylene vinylsilane copolymers; ethylene diene copolymers; crosslinking; water; dibutyltindilaurate; electron beam; peroxide; crosslinking density;

    Sammanfattning : The chemical reactions taking place when crosslinking poly(ethylene-co-vinyltrimethoxysilane) (EVS) have been studied. Films of EVS were stored in water at 90 °C or treated at processing temperatures in a tubular oven. The different chemical groups involved in the reactions were then followed by FTIR after different treatment times. LÄS MER

  2. 2. Graft copolymers for morphological control

    Detta är en avhandling från Chalmers University of Technology

    Författare :Lena Kvist; Chalmers tekniska högskola.; Chalmers University of Technology.; [1996]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; immiscible polymer blends; graft copolymers; interphase; compatibilizer; morphology; interfacial tension;

    Sammanfattning : .... LÄS MER

  3. 3. Durable Polysulfones with Densely Sulfonated Segments for Highly Proton Conducting Membranes

    Detta är en avhandling från Lund University (Media-Tryck)

    Författare :Shogo Takamuku; Lunds universitet.; Lund University.; [2012]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; polymer electrolytes; sulfonations; polycondensation; polyaromatics; ionomers; sulfonated monomers; block copolymers; segmented copolymers; sequenced copolymers; poly arylene ether sulfone s; lithiations; sulfinations; metalations; phase-separation; highly sulfonations; macromonomers; blocky structures;

    Sammanfattning : Popular Abstract in English Fuel cells have been considered as alternative power source to petroleum oil. Especially, fuel cells have potentials to provide no pollutant emission (e.g., CO2, NOx, SOx) out of the power generation. LÄS MER

  4. 4. Functional Copolymers of Polyvinylpyrrolidone

    Detta är en avhandling från Chalmers University of Technology

    Författare :Jonas Engström; Chalmers tekniska högskola.; Chalmers University of Technology.; [2006]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Kemi; Chemistry; Polyvinylpyrrolidone; 1-vinylpyrrolidin-2-one; copolymerization; functional monomers; crosslinking; suspension polymerization; beads; swelling; solid-phase synthesis; phase-selective solubility; drug delivery vehicles.;

    Sammanfattning : In many ways, polyvinylpyrrolidone (PVP) has a unique combination of chemical and physical properties. Unlike most polymers it is soluble in water as well as a number of organic solvents. PVP also has excellent film forming properties, outstanding chemical stability, complexing ability, low toxicity, and good adherence to many different substrates. LÄS MER

  5. 5. Chemical ageing and thermal stability of polyethylene copolymers

    Detta är en avhandling från Chalmers University of Technology

    Författare :Karl Michael Jäger; Chalmers tekniska högskola.; Chalmers University of Technology.; [1999]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; polyethylene copolymers; carbon black; thermal degradation; ageing; electrical properties; agglomeration;

    Sammanfattning : .... LÄS MER