Sökning: "thermoresponsive"

Visar resultat 1 - 5 av 12 avhandlingar innehållade ordet thermoresponsive.

  1. 1. Polymers in Aqueous Lubrication

    Detta är en avhandling från Stockholm : KTH Royal Institute of Technology

    Författare :Junxue An; Per M. Claesson; Martin Malsten; [2017]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Lubrication; boundary lubrication; friction; surface forces; adsorption; adsorption hysteresis; non-equilibrium state; diblock copolymer; polyelectrolyte; thermoresponsive; mucin; QCM-D; ellipsometry; AFM; Kemi; Chemistry;

    Sammanfattning : The main objective of this thesis work was to gain understanding of the layer properties and polymer structures that were able to aid lubrication in aqueous media. To this end, three types of polyelectrolytes: a diblock copolymer, a train-of-brushes and two brush-with-anchor mucins have been utilized. LÄS MER

  2. 2. Thermoresponsive cellulose-based composites by polymer modification

    Detta är en avhandling från Stockholm : KTH Royal Institute of Technology

    Författare :Emma Larsson; Anna Carlmark Malkoch; Lian Hutchings; [2015]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Chemical Engineering; Kemiteknik;

    Sammanfattning : The interest in utilizing cellulose based materials has grown rapidly in recent years, due to the growing environmental concerns about utilizing fossil based material. One potential application of cellulose is in thermoresponsive materials, which are attracting attention due to their ability of altering conformation when exposed to changes in external temperature. LÄS MER

  3. 3. A microfluidic toolbox to fabricate, sort and characterize thermoresponsive colloidal molecules and their assemblies

    Detta är en avhandling från Stockholm : KTH Royal Institute of Technology

    Författare :Feifei Peng; [2019-05-24]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Microgels; Thermoresponsive Colloidal Molecules; Microfluidics; Self-Assembly; Microgels; Thermoresponsive Colloidal Molecules; Microfluidics; Self-Assembly;

    Sammanfattning : In this thesis we discuss the assembly of thermoresponsive microgel particles into small clusters, and their use as colloidal molecules with specific and directional interactions. The underlying goal is to use these particles as advanced building blocks for new types of self- assembled structures with novel or vastly improved properties, and as model particles for investigating fundamental problems in condensed matter physics. LÄS MER

  4. 4. Fluids, Gels and Crystals : Phase behavior of binary thermoresponsive microgel mixtures

    Detta är en avhandling från Kemiska institutionen, Lunds universitet

    Författare :Jasper Immink; [2019-03]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; colloidal phase behavior; microgel; binary mixture; colloidal gel; sequential gelation; patchy particle; binary crystal; crystal-to-crystal transition;

    Sammanfattning : Thermoresponsive colloidal microgels expel solvent from their interior upon crossing a threshold temperature, resulting in a significantly reduced size. The collapse of microgels can reversibly switch the interparticle interactions from soft repulsive to attractive, and the accompanying size reduction allows for precise control over volume fraction. LÄS MER

  5. 5. Surface modification of cellulose-based fibres for use in advanced materials

    Detta är en avhandling från KTH

    Författare :Simon Utsel; Lars Wågberg; Mikael Lindström; Magnus Norgren; [2010]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TECHNOLOGY Chemical engineering; TEKNIKVETENSKAP Kemiteknik;

    Sammanfattning : The awareness of our need for a sustainable society has encouraged the search for renewable, high quality materials that can replace oil-based products. This, in combination with increased competition in the forest industry, has stimulated a lot of research into different types of wood-based materials where cellulose-rich fibres are combined with different types of polymers. LÄS MER