Search for dissertations about: "layer by layer and weak polyelectrolyte"

Found 3 swedish dissertations containing the words layer by layer and weak polyelectrolyte.

  2. 1. Formation and properties of polyelectrolyte multilayers on wood fibres : influence on paper strength and fibre wettability

    Author : Rikard Lingström; Lars Wågberg; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; polyelectrolyte; multilayer; adsorption; reflectance; contact angle; dynamics; paper; mechanical properties; individual; wood fibre; Chemistry; Kemi;

    Abstract : The work in this licentiate thesis examines the adsorption of polyelectrolyte multilayers (PEM) onto wood fibres as a new way to influence the properties of the fibre surfaces and hence the fibres. Fundamental aspects of PEM formation on wood fibres have been studied, and discussed in terms of paper strength and wood fibre wettability. READ MORE

  4. 2. Tailored layer-by-layer films of nanofibrillated cellulose

    Author : Erdem Karabulut; Lars Wågberg; Lennart Piculell; Eva Blomberg; KTH; []
    Keywords : layer-by-layer assembly; nanofibrillated cellulose; thin film; surface adsorption; polyelectrolytes;

    Abstract : The preparation of multifunctional films, coatings and membranes from natural, sustainable and low-cost raw materials has attracted considerable interest during the last decade. In this respect, cellulose-based products possess a great promise for research and industry due both to the availability of large amounts of material in nature and to the preparation of new classes of nano-sized and well-characterized building-blocks of cellulose from trees or annual plants. READ MORE

  5. 3. Modification of microcapsules for controlled release

    Author : Markus Andersson Trojer; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; block copolymer; coordination chemistry; polyelectrolyte multilayer; cross-linking; vibrational spectroscopy; electron paramagnetic resonance; imidazole; controlled release; colloidal stability; Microcapsule; quartz crystal microbalance with dissipation;

    Abstract : Fouling of marine organisms such as algae and barnacles on the boat hull is an enormous problem for the shipping industry. The negative consequences for the society are both economical and environmental. To prevent fouling in general, biocides are typically incorporated directly into the paint. READ MORE