Sökning: "polyester films"

Visar resultat 16 - 20 av 20 avhandlingar innehållade orden polyester films.

  1. 16. Synthetic Pathways to Aliphatic Polyesters and Scaffold Design

    Författare :Therese Tyson; Ann-Christine Albertsson; Elisabetta Ranucci; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Polymer chemistry; Polymerkemi;

    Sammanfattning : As the field of tissue engineering progresses, a continuous development of scaffold fabrication techniques and suitable degradable materials is required to obtain scaffolds with tunable characteristics. This thesis has focused on the development of pathways to synthesize degradable aliphatic polyesters and on the design of highly porous scaffolds from this class of materials. LÄS MER

  3. 17. degradable electroactive polymers: Synthesis, Macromolecular architecture and scaffold design

    Författare :Baolin Guo; Ann-Christine Albertsson; Patric Jannasch; KTH; []
    Nyckelord :Poly lactide ; poly ε-caprolactone ; ring-opening polymerization; carboxyl-capped aniline trimer; carboxyl-capped aniline pentamer; phenyl amino-capped aniline tetramer; coupling reaction; DCC DMAP system; degradability; electroactivity; conductivity; macromolecular architecture; chitosan; hydrogel; block copolymer; functionalization; oxidative coupling reaction; self-assembly; toxicity; tubular porous scaffold; neural tissue engineering.;

    Sammanfattning : Electrically conducting polymers induce specific cellular responses at the molecular level. One of the crucial limitations of the use of conducting polymers in tissue engineering is their inability to degrade. LÄS MER

  4. 18. Polyesters with indole as sustainable aromatic component

    Författare :Ping Wang; Centrum för analys och syntes; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; indole; sustainable polyesters; high performance; recycling; biodegradation;

    Sammanfattning : Plastics are widely used in our daily lives and industry. Unfortunaltely, most plastics are produced from non-renewable fossil resources. The transition toward sustainable resources such as various biomass is critically important for the future of plastic industry and the whole society. LÄS MER

  5. 19. Mechanisms and improvements of cell transplantation for nerve repair

    Författare :Kai-Hei Tse; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Mesenchymal stem cells; microporous scaffold; biomaterials; ischemia; cell death; brain derived neurotrophic factor;

    Sammanfattning : Trauma to the nervous system is a frequent clinical problem and new approaches to nerve repair are required. Autologous cell transplantation together with a suitable scaffold material could be used to create a bio-active artificial nerve graft to enhance regeneration. LÄS MER

  7. 20. Functional composite coatings containing conducting polymers

    Författare :Shadi Jafarzadeh; Per Martin Claesson; Arjan Mol; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Conducting polymer; Polyaniline; Conductive network; Nanocomposite; Active corrosion protection; Interfacial energy; UV curing; Kemi; Chemistry;

    Sammanfattning : Organic coatings are widely used to lower the corrosion rate of metallic structures. However, penetration of water, oxygen and corrosive ions through pores present in the coating results in corrosion initiation and propagation once these species reach the metal substrate. LÄS MER