Sökning: "oligomer"

Visar resultat 16 - 20 av 75 avhandlingar innehållade ordet oligomer.

  1. 16. Fabrication of Polymer Electrolytes for 3D-Microbatteries

    Författare :Bing Sun; Daniel Brandell; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; 3D-microbattery; Polymer electrolyte; Multifunctional monomer; Polyetheramine; Polycarbonate; Kemi med inriktning mot materialkemi; Chemistry with specialization in Materials Chemistry;

    Sammanfattning : Pressing demands on electrical energy storage require high power and high energy density rechargeable batteries with improved safety, reliable performance and low cost. This has led to reconsiderations in the choice of battery chemistry and battery design. LÄS MER

  3. 17. Soluble amyloid-β aggregates in Alzheimer’s disease

    Författare :Hillevi Englund; Frida Ekholm Pettersson; Lars NG Nilsson; Lars Lannfelt; Dominic M Walsh; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Geriatrics and medical gerontology; Geriatrik och medicinsk gerontologi; Geriatrics; geriatrik;

    Sammanfattning : Soluble oligomeric aggregates of the amyloid-β (Aβ) peptide are suggested to initiate Alzheimer's disease (AD), leading to impaired synapse signalling, widespread neuronal death and loss of cognitive functions. These aggregates seem tightly linked to disease progression, and have therefore gained much attention as potential novel disease markers. LÄS MER

  4. 18. Photoinduced Electron and Energy Transfer in Π-Conjugated Systems

    Författare :Melina Gilbert Gatty; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; fs spectroscopy; exciton coupling; conjugated porphyrin oligomers; ps spectroscopy; molecular wire; electron transfer; conformational analysis; self‒assembly; anthracene dendrimers; energy transfer; fluorescence anisotropy;

    Sammanfattning : Photosynthesis is a fascinating process that provides food and oxygen. In this thesis, focus is on understanding and controlling the early processes of photosynthesis, namely photoinduced energy and electron transfer. LÄS MER

  5. 19. Glass Transition Dynamics in Soft Condensed Matter

    Författare :Johan Mattsson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; polymer films; beta relaxation; hydrogen bond; glass transition; polymer dynamics; cooperativity; confinement; IXS; Brillouin light scattering; excess wing;

    Sammanfattning : Materials of very different character, ranging from polymers to metals can be made into glasses. The structural and dynamical properties of glass-forming materials are fundamentally different from those found in crystals. Hence, glassy materials exhibit unique characteristics, which make them suitable for a wide range of applications. LÄS MER

  7. 20. Synthesis, characterization and molecular architecture of electroactive and degradable polymers

    Författare :Baolin Guo; Ann-Christine Albertsson; Anna Finne Wistrand; Ann Cornell; Mark Rutland; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Poly L; L-lactide ; poly ε-caprolactone ; ring-opening polymerization; carboxyl-capped aniline trimer; carboxyl-capped aniline pentamer; coupling reaction; DCC DMAP system; degradability; electroactivity; conductivity; macromolecular architecture; tissue engineering; Polymer chemistry; Polymerkemi;

    Sammanfattning : The third-generation biomaterials are designed to stimulate specific cellular responses at the molecular level. Recent studies have shown that electrical signals regulate cellular activities including cell adhesion, migration, proliferation and differentiation. LÄS MER