Search for dissertations about: "Graft copolymer"

Showing result 1 - 5 of 18 swedish dissertations containing the words Graft copolymer.

2. 1. Amphiphilic Graft Copolymer Electrolytes for Lithium-Ion Polymer Batteries. - Preparation and Characterisation

   Author : Patrik Gavelin; Centrum för analys och syntes; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Polymer technology; biopolymers; Polymerteknik; Kemiteknik och kemisk teknologi; Chemical technology and engineering; transport dynamics; ion conductivity; solid polymer electrolyte; gel electrolyte; macromonomer copolymerization; amphiphilic graft copolymer;

   Abstract : In the present work amphiphilic graft copolymers were prepared by free radical copolymerization of macromonomers in solution. The graft copolymers consisted of methacrylate backbones bearing ethylene oxide (EO)n side chains of varying length as ionophilic groups, and fluorocarbon (CF2)6 side chains or hydrocarbon groups as ionophobic groups. READ MORE

4. 2. Design of renewable and functional polyamides and polyhydroxyurethanes with tunable structure-property relationships

   Author : Charalampos Pronoitis; Karin Odelius; Minna Hakkarainen; Stefan Naumann; KTH; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; polyamide; polyhydroxyurethane; polyester; ring-opening aminolysis; ring-opening polymerization; covalent adaptable network; copolymer; complex architecture; polyamid; polyhydroxyuretan; polyester; ringöppningsaminolys; ringöppningspolymerisation; dynamiska nätverk; sampolymer; komplex arkitektur; Fiber- och polymervetenskap; Fibre and Polymer Science;

   Abstract : Redesigning polymeric materials and rethinking their use is imperative in the prospect of a more sustainable future. Critical aspects in this endeavor are the use of renewable monomers to decrease the environmental footprint, implementing green syntheses and production processes and the design for increased recyclability as an end-of-life option to diverge from the generation of plastic waste. READ MORE

5. 3. Poly(ethylene-graft-ethylene oxide) Preparation and Properties in Polymer Blends

   Author : Åsa Halldén; Centrum för analys och syntes; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Surface modification; Graft copolymers; Polymer blends; Polyethylene; Polyethylene oxide; Polyamide; Polymer technology; biopolymers; Polymerteknik;

   Abstract : This thesis describes the preparation, characterisation and properties of poly(ethylene-graft-ethylene oxide) (PE-PEO). The grafting reaction was carried out with the grafting onto method using the carboxylic acid groups of poly(ethylene-co-acrylic acid) (PEAA) as reactive sites in an esterification reaction with poly(ethylene oxide) mono-methyl ethers (MPEO) of varying molecular weights: 750, 2000 and 5000. READ MORE

6. 4. Effects of a Novel Amphiphilic Graft Copolymer on Ternary Mixtures of Surfactant, Water, and Oil

   Author : Anna Holmberg; Fysikalisk kemi; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; TRFQ; PFG NMR; molecular self-diffusion; phase behavior; viscosity; amphiphilic polymer; oil-continuous microemulsion; light scattering; Physical chemistry; Fysikalisk kemi;

   Abstract : An amphiphilic graft copolymer, with hydrophilic poly(ethylene glycol) monomethyl ether side chains grafted onto a hydrophobic poly(dodecyl methacrylate) backbone, has been synthesized. The side chains are water soluble and the backbone is soluble in oils such as cyclohexane and isooctane. READ MORE

7. 5. Preparation and Compatibilizing Properties of Poly(styrene-graft-ethylene oxide) in Polymer Blends

   Author : Patric Jannasch; Centrum för analys och syntes; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Anionic Polymerization of Ethylene Oxide; Polystyrene; Polymer technology; biopolymers; Polymerteknik; Ethoxylation; Grafting; Poly styrene-graft-ethylene oxide ; Crystallization; Interphases; Macrophases; Poly butyl acrylate ; Compatibilization of Polymer Blends; Polyamide;

   Abstract : One of the main trends in the polymer industry today is the increasing importance of polymer blends. Combining two or more immiscible polymers in a polymer blend often leads to multi-phase materials with desirable properties. READ MORE