Sökning: "Cationization"

Hittade 3 avhandlingar innehållade ordet Cationization.

  1. 1. Chemical modification of cellulose-new possibilities of some classical routes

    Detta är en avhandling från ; Chalmers tekniska högskola; Gothenburg

    Författare :Merima Hasani; [2010]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Cellulose esters; Cellulose characterization; Cellulose ethers; Cationization; Cellulose nanocrystals; Crosslinking of cellulose;

    Sammanfattning : Owning to its unique structure, along with the inexhaustible renewability, cellulose has been a subject of scientific and commercial interest for over 150 years. However, given attractive structural properties, such as stiffness, hydrophilicity, stereoregularity, potential for chemical modifications and ability to form superstructures, utilization of this biopolymer is far below its potential. LÄS MER

  2. 2. Chemical Functionalization and Characterization of Cellulosic Materials

    Detta är en avhandling från ; Chalmers tekniska högskola; Gothenburg

    Författare :Hanna de la Motte; [2011]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Cationization; High bulk networks; Crosslinking; Softwood kraft pulp; Nuclear magnetic resonance; Characterization; Nanocrystalline cellulose; Cotton linters;

    Sammanfattning : Polysaccharides are the most abundant biopolymers produced in nature and belong, together with proteins and nucleic acids, to the main components of life. Polysaccharides are polyhydroxylic polymers that can be functionalized by a wide selection of chemical reactions, and modifications of these biopolymers are applicable in the development of new materials. LÄS MER

  3. 3. Adsorption of xylans on cellulosic fibres -Influence of xylan composition on adsorption characteristics and kraft pulp properties

    Detta är en avhandling från ; Chalmers tekniska högskola; Gothenburg

    Författare :Tobias Köhnke; [2010]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Xylan; Hornification; Lignin-carbohydrate complexes; Cationization; Isolation; Softwood kraft pulp; Extraction; Adsorption;

    Sammanfattning : Xylans are polysaccharides present in large amounts in cell walls of vascular plants. They possess an inherent affinity to cellulose and will thus adsorb irreversibly on cellulose surfaces. LÄS MER