Sökning: "polymer size distribution"

Visar resultat 1 - 5 av 48 avhandlingar innehållade orden polymer size distribution.

  1. 1. Porous polymeric materials for chromatography Synthesis, functionalization and characterization

    Detta är en avhandling från Umeå : Kemiska Institutionen, Umeå universitet

    Författare :Emil Byström; Umeå universitet.; [2009]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; porous polymer monolith; pore size distribution; nitrogen sorptiometry; mercury intrusion porosimetry; scanning and transmission electron microscopy; plasma functionalization; NATURAL SCIENCES Chemistry Analytical chemistry; NATURVETENSKAP Kemi Analytisk kemi; NATURAL SCIENCES Chemistry Analytical chemistry Separation methods; NATURVETENSKAP Kemi Analytisk kemi Separationsmetoder; NATURAL SCIENCES Chemistry Organic chemistry Polymer chemistry; NATURVETENSKAP Kemi Organisk kemi Polymerkemi; analytisk kemi; Analytical Chemistry;

    Sammanfattning : Background: Separation science is heavily reliant on materials to fulfill ever more complicated demands raised by other areas of science, notably the rapidly expanding molecular biosciences and environmental monitoring. The key to successful separations lies in a combination of physical properties and surface chemistry of stationary phases used in liquid chromatographic separation, and this thesis address both aspects of novel separation materials. LÄS MER

  2. 2. Alternative Routes to Highly Dispersed Cobalt Ferrite Nanocomposites

    Detta är en avhandling från Stockholm : KTH

    Författare :Richard T. Olsson; KTH.; [2007]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; aqueous precipitation; cobalt ferrite; nanoparticles; synthesis; size distribution; silane silsesquioxane; epoxy; nanocomposites; magnetic cellulose; NATURAL SCIENCES Chemistry Organic chemistry Polymer chemistry; NATURVETENSKAP Kemi Organisk kemi Polymerkemi;

    Sammanfattning : .... LÄS MER

  3. 3. On the Solubility of Wood Hemicelluloses in Water and its Influence on the Adsorption at Cellulose/Water Interfaces

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

    Författare :Saina Kishani; KTH.; [2019]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Wood; Hemicellulose; Solubility; Adsorption; Interaction; Cellulose; Size distribution;

    Sammanfattning : Hemicelluloses are a group of natural polysaccharides and one of the main components of wood. The availability and biodegradability of these polymers have created a great interest in developing new bio-based materials or composites from these materials for different end-use purposes. LÄS MER

  4. 4. New Mass Spectrometric Methods for Structure Analysis of Carboxymethyl Cellulose

    Detta är en avhandling från Stockholm : KTH

    Författare :Jonas Enebro; KTH.; [2008]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; carboxymethyl cellulose; substituent distribution; rheology; enzyme hydrolysis; cellulase; permethylation; liquid chromatography; MALDI; ESI; mass spectrometry; NATURAL SCIENCES Chemistry Organic chemistry Polymer chemistry; NATURVETENSKAP Kemi Organisk kemi Polymerkemi;

    Sammanfattning : Carboxymethyl cellulose (CMC) is a cellulose derivative, made from cellulose by introduction of carboxymethyl groups along the molecules. The properties of CMC are affected by several parameters where the molar mass and molar mass distribution, degree of substitution (DS) and the distribution pattern along, and between, the cellulose molecules are the most prominent. LÄS MER

  5. 5. Protein-Polymer Interaction and Association in Aqueous Solution

    Detta är en avhandling från Department of Biochemistry, Lund University

    Författare :Malin Jönsson; [2005]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Physical chemistry; Fysikalisk kemi; Makromolekylär kemi; Macromolecular chemistry; enzymologi; Proteiner; enzymology; Proteins; Aqueous two-phase systems; Monte Carlo Simulations; hydrophobic effect; surface hydrophobicity; plasmid DNA; Protein; polymer;

    Sammanfattning : The aim of this thesis has been to study protein-polymer interaction and association. Two different techniques were used; Monte Carlo simulations were combined with partitioning in polymeric aqueous two-phase systems. Monte Carlo simulations have been used to evaluate the hydrophobic interaction in electrolyte solution. LÄS MER