Sökning: "atom transfer radical polymerization"

Visar resultat 16 - 20 av 23 avhandlingar innehållade orden atom transfer radical polymerization.

1. 16. Macromolecular Engineering by Surface-Initiated ATRP: : New Nanomaterials for Bioapplications

   Författare :Lingdong Jiang; Tillämpad biokemi; []
   Nyckelord :Nanohybrid; Polymer brush; ATRP; Bioseparation; Bioconjugate;

   Sammanfattning : The objective of this thesis is to investigate the synthesis of well-defined polymer nanohybrid materials bearing desirable functionality via surface-initiated atom transfer radical polymerization (SI-ATRP) for potential bioapplications.SI-ATRP is an excellent controlled radical polymerization (CRP) method for the synthesis of polymer nanohybrid by growing polymer brushes (chains) from an interface, which allows precise control over polymer composition, topology, and functionality. LÄS MER

3. 17. ARGET ATRP as a Tool for Cellulose Modification

   Författare :Susanne Hansson; Eva Malmström; Anna Carlmark; Steve Edmondson; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

   Sammanfattning : The importance of finding new applications for cellulose‐based products has increased, especially to meet the demand for new environmentally friendly materials, but also since the digitalization of our society will eventually decrease the need for paper. To expand the application area of cellulose, modification to improve and/or introduce new properties can be a requisite. LÄS MER

4. 18. Hydrophilic Separation Materials for Liquid Chromatography

   Författare :Petrus Hemström; Knut Irgum; Peter Schoenmakers; Umeå universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Chromatography; HILIC; Hydrophilic; Stationary phase; Chemistry; Kemi;

   Sammanfattning : The main focus of this thesis is on hydrophilic interaction chromatography (HILIC) and the preparation of stationary phases for HILIC. The mechanism of HILIC is also discussed; a large part of the discussion has been adapted from a review written by me and professor Irgum for the Journal of Separation Science (ref 34). LÄS MER

5. 19. Branched aliphatic polycarbonates : synthesis and coating applications

   Författare :Peter Löwenhielm; KTH; []
   Nyckelord :polymer technology;

   Sammanfattning : The overall aim of this thesis is to describe the synthesisof branched aliphatic polycarbonates and show the potentialapplication of these polymers in the field of powder coatings.The characterization of the polycarbonates was facilitated bythe study of a series of bis-MPAdendrimers, which served asreference of perfectly branched polymers. LÄS MER

7. 20. Towards compatibilization of cellulose nanofibrils in polymer matrices : Polymer design for mediating the nanofibril–matrix interface

   Författare :Rosella Telaretti Leggieri; Eva Malmström; Mats Johansson; Catarina de Carvalho Esteves; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Cellulose nanofibril CNF ; copolymer; nanocomposite; coating; reinforcement; interface; Fiber- och polymervetenskap; Fibre and Polymer Science;

   Sammanfattning : Magnifying the nanostructure of wood reveals the features of an extraordinary nanocomposite material. In this nanocomposite, long fibrils of semicrystalline cellulose, with a cross-section in the nanometer range and length up to several micrometers, are embedded in an amorphous matrix made of other polymeric components. LÄS MER