Sökning: "Ann-Christine Albertsson"

Visar resultat 1 - 5 av 42 avhandlingar innehållade orden Ann-Christine Albertsson.

  1. 1. Bioresorbable copolymers with tailored properies : innovative materials för soft tissuel engineering

    Författare :Natalia Andronova; Ann-Christine Albertsson; Pieter Dijkstra; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; poly 1; 5-dioxepan-2-one ; poly ε-caprolactone ; poly L-lactide ; poly trimethylene carbonate ; triblock; network; cyclic tin alkoxide; controlled coordination-insertion ring-opening polymerization; thermoplastic elastomers; Polymer chemistry; Polymerkemi;

    Sammanfattning : The emerging need for new synthetic materials for soft tissue engineering applications encourages the search for innovative polymers having interesting properties. Ring-opening polymerization of lactones and lactides initiated by tin alkoxides has received particular attention due to the versatility of the method for building up well-defined biodegradable structures. LÄS MER

  3. 2. Macrostructural Design of Polylactide-based Materials for Improved Mechanical and Degradation Properties

    Författare :Veluska Arias Goa; Ann-Christine Albertsson; Maria Eklund; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : .... LÄS MER

  4. 3. Towards a retro-structural design of degradable aliphatic polyester-based materials

    Författare :Veluska Arias; Ann-Christine Albertsson; Minna Kellomäki; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Hydrolysis; polyesters; polylactide; hydrophobicity; crystallinity; miscibility; nanoparticles; stereocomplex; homocomposites; Kemi; Chemistry;

    Sammanfattning : The increasing amount of accumulated plastic waste has led to a continuous search for degradable materials for use in a variety of applications. This eco-friendly approach contemplates the use of degradable alternatives to the inert polymers (the main components in plastics) used today and further engineering of their degradation pathways. LÄS MER

  5. 4. Chromatography and extraction techniques for new evaluation methods of polyolefins long-term performance

    Författare :Lina Burman; Ann-Christine Albertsson; Marek Kowalczuk; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Chemical engineering; polymer; chromatographic fingerprinting; gas-chromatography – mass spectrometry; GC-MS; degradable polyethylene; prooxidant systems; chemiluminescence; oxidation; degradation mechanisms; accelerated ageing; antioxidants; transformation products; microwave assisted extraction; MAE; solid-phase microextraction; SPME; volatiles; solid phase extraction; SPE; Kemiteknik; Chemical engineering; Kemiteknik;

    Sammanfattning : Chromatography and extraction techniques, and also chemiluminescence have been utilized to develop new rapid and informative tools in the evaluation of long-term properties and environmental effects of polymeric materials. Methods were developed for classification of materials and for early and rapid degradation detection. LÄS MER

  7. 5. Polyester scaffold: Material design and cell-protein-material interaction

    Författare :Staffan Dånmark; Anna Finne-Wistrand; Ann-Christine Albertsson; Kamal Mustafa; Pentti Tengvall; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : Tissue engineering has emerged as a valid approach for the regeneration and restoration of bone defects. The concept of bone tissue engineering includes degradable scaffolds, osteogenic cells and osteoinductive growth factors either alone or in any combination of these three. LÄS MER