Sökning: "Electroactive polymers"

Visar resultat 1 - 5 av 18 avhandlingar innehållade orden Electroactive polymers.

  1. 1. Modeling and simulation of electro-viscoelastic polymers

    Författare :Anna Ask; Hållfasthetslära; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electroactive polymers; dielectric elastomer actuators; electromechanical coupling; finite elements; viscoelasticity; finite deformations;

    Sammanfattning : The electroactive polymer materials considered in this work react to electric stimuli by producing deformations. In some cases, the electrically induced deformations are moderate, while in other cases they can be very large and the specimen is stretched to more than twice its original length. LÄS MER

  3. 2. Electro-viscoelastic Modeling of Electroactive Polymers

    Författare :Anna Ask; Hållfasthetslära; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : While traditionally treated separately, the research disciplines dealing with electromagnetic fields respectively continuum mechanics are naturally connected. Not only are the basic equations formulated in a similar way, but the presence of electromagnetic fields affect the balance equations of continuum mechanics and likewise, the presence of material continua affect the electromagnetic fields. LÄS MER

  4. 3. Cellulose-based Conducting 3D and 2D Composites for Applications in Plant Science and Responsive Systems

    Författare :Vasileios Oikonomou; Eleni Stavrinidou; Magnus Berggren; Anna Herland; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; polymers; cellulose; conjugated polymers; volume changes; plant growth substrates;

    Sammanfattning : Polymers (Greek: poly=many, meros=part) are large molecules made up of many small parts (monomers) in a repetitive way, as a term was introduced for the first time (1833) by the Swedish chemist, Jöns Jakob Berzelius. By the combination of different monomers, the resulting polymer can exhibit various properties, such as biodegradability, photosensitivity and electrical conductivity. LÄS MER

  5. 4. Reflective structural colors and their actuation using electroactive conducting polymers

    Författare :Stefano Rossi; Magnus Jonsson; Eleni Stavrinidou; Laura Na Liu; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Structural colors; Reflective displays; Optical nanocavities; Conducting polymers; Electrochemical tuning.;

    Sammanfattning : The integration of inorganic photonic nanostructures with organic materials opens new possibilities to dynamically modify the optical response of photonic devices. This thesis focuses on how to generate efficient reflective structural colors and tune them in combination with a conducting polymer (CP). LÄS MER

  7. 5. 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