Sökning: "polyelectrolyte"

Visar resultat 1 - 5 av 122 avhandlingar innehållade ordet polyelectrolyte.

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

    Detta är en avhandling från Stockholm : KTH

    Författare :Caroline Ankerfors; KTH.; [2008]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TECHNOLOGY Chemical engineering Chemical process and manufacturing engineering Cellulose and paper engineering; TEKNIKVETENSKAP Kemiteknik Kemisk process- och produktionsteknik 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

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

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

    Författare :Caroline Ankerfors; KTH.; [2012]
    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

  3. 3. Polyelectrolyte Complexes : Their Characterization and use for Modification of Wood Fibre Surfaces

    Detta är en avhandling från Stockholm : KTH

    Författare :Linda Gärdlund; Mittuniversitetet.; KTH.; [2006]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TECHNOLOGY Chemical engineering; TEKNIKVETENSKAP Kemiteknik; Cellulosa- och pappersteknik; TECHNOLOGY Chemical engineering Chemical process and manufacturing engineering Cellulose and paper engineering; TEKNIKVETENSKAP Kemiteknik Kemisk process- och produktionsteknik Cellulosa- och pappersteknik;

    Sammanfattning : For economical reasons filler particles and less expensive fibre raw materials are more frequently used in papermaking. This influences the mechanical properties of the formed papers in a negative way and it is therefore necessary to add strength-enhancing agents to the papermaking furnish. LÄS MER

  4. 4. Polyelectrolyte-Based Capacitors and Transistors

    Detta är en avhandling från Norrköping : Linköping University Electronic Press

    Författare :Oscar Larsson; Linköpings universitet.; Linköpings universitet.; [2011]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Organic electronics; Polarization; Polyelectrolyte; Transistor; Polymer; Sensor; Capacitor; NATURAL SCIENCES; NATURVETENSKAP;

    Sammanfattning : Polymers are very attractive materials that can be tailored for specific needs and functionalities. Based on their chemical structure, they can for instance be made electrically insulating or semiconducting with specific mechanical properties. LÄS MER

  5. 5. The effects of cellulosic fiber charges on polyelectrolyte adsorption and fiber-fiber interactions

    Detta är en avhandling från Stockholm : KTH

    Författare :A. Elisabet Horvath; KTH.; [2006]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; adsorption; electrolyte; polyelectrolyte; polyelectrolyte titration; stoichiometry; fluorescence; CLSM; carboxymethylation; ESCA; charge ration; colloidal interactions; mechanical forces; network strength; floc; CPM; rehometer; TECHNOLOGY Chemical engineering Chemical process and manufacturing engineering Cellulose and paper engineering; TEKNIKVETENSKAP Kemiteknik Kemisk process- och produktionsteknik Cellulosa- och pappersteknik;

    Sammanfattning : The surface charges of cellulosic fibers contribute to several papermaking operations that influence the manufacture and final properties of paper. This thesis investigates the effect of the surface charges on wet-end chemistry, e.g. LÄS MER