Sökning: "Polyelectrolyte complex"

Visar resultat 1 - 5 av 34 avhandlingar innehållade orden Polyelectrolyte complex.

  1. 1. Polyelectrolyte complexes : their preparation, adsorption behaviour and effect on paper properties

    Författare :Caroline Ankerfors; Lars Wågberg; Monica Ek; Tom Lindström; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Cellulose and paper engineering; Cellulosa- och pappersteknik;

    Sammanfattning : In this work, the formation of polyelectrolyte complexes (PECs) has been studied using a jet mixing method not previously used for mixing polyelectrolytes. The PECs were formed from two weak polyelectrolytes, i.e. LÄS MER

  3. 2. Polyelectrolyte complexes : Preparation, characterization, and use for control of wet and dry adhesion between surfaces

    Författare :Caroline Ankerfors; Lars Wågberg; Regine von Klitzing; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : This thesis examines polyelectrolyte complex (PEC) preparation, adsorption behaviour, and potential use for control of wet and dry adhesion between surfaces. PEC formation was studied using a jet-mixing method not previously used for mixing polyelectrolytes. LÄS MER

  4. 3. Controlling Structure and Water Miscibility of Polyion - Surfactant Ion Complex Salts

    Författare :Jens Norrman; Fysikalisk kemi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Physical chemistry; Fysikalisk kemi; phase diagram; cubic Pm3n; hexagonal; lamellar; self diffusion; PFG NMR; SAXS; liquid crystals; polymer; counterion; complex; polyelectrolyte; surfactant;

    Sammanfattning : The interaction between poylions and oppositely charged surfactant ions has been investigated. This has been done by using the pure complex salt (polyion + surfactant ion) as a point of departure. Different parameters of the complex salt have been varied in a systematic way and the effect on structure and water miscibility has been investigated. LÄS MER

  5. 4. Phase Equilibria and Structures of Oppositely Charged Polymers and Surfactants in Water

    Författare :Anna Svensson; Fysikalisk kemi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; self diffusion; PFG NMR; hexagonal; cubic Pm3n; liquid crystals; SAXS; polymer; counterion; complex; polyelectrolyte; surfactant; Monte Carlo simulations; Physical chemistry; Fysikalisk kemi;

    Sammanfattning : A new approach to the study of aqueous mixtures of oppositely charged polymers and surfactants has been introduced. Pure polyion-surfactant ion complex salts have been synthesized and used as the point of departure. The elimination of the simple ions reduces the number of components in the mixtures, thus greatly simplifying the system. LÄS MER

  7. 5. Properties of Protein and Polymer Systems

    Författare :Fredrik Carlsson; Avdelningen för Konstruktionsteknik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Fysikalisk kemi; Physical chemistry; lysozyme; mica; surface; dimerization; precipitation; aggregate; cluster; complex; polyelectrolyte; protein; polymer;

    Sammanfattning : Interactions of proteins with other proteins, with polymers and with surfaces are of great practical importance within for instance protein purification, drug delivery, and food technology. The aim of this work is to increase the understanding of protein-protein, protein-polyelectrolyte, and protein-surface interactions, particularly concerning the role of electrostatic interactions in these systems. LÄS MER