Search for dissertations about: "Poly L"

Showing result 1 - 5 of 83 swedish dissertations containing the words Poly L.

2. 1. Covalent Vapor-Phase Grafting of Degradable Polymers

   Author : Martina Källrot; Ann-Christine Albertsson; Maria Nowokowska; KTH; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Vapor-phase grafting; covalent surface modification; functionalization; solvent-free grafting; sub-micron patterned topography; scaffolds; degradable polymers; poly L-lactide ; poly ε-caprolactone ; poly trimethylene carbonate ; poly L-lactide-co-glycolide ; poly 1; 5-dioxepan-2-one-co-L-lactide ; poly ε-caprolactone-co-L-lactide ; N-vinylpyrrolidone; maleic anhydride; acrylamide; acrylic acid; hyaluronic acid; in vitro degradation; Gasfasympning; kovalent ytmodifiering; funktionalisering; lösningsmedelsfri ympning; sub-micrometer mönstrad topografi; nedbrytbara polymerer; poly L-laktid ; poly ε-kaprolakton ; poly trimetylen karbonat ; poly L-laktid-co-glykolid ; poly 1; 5-dioxepan-2-one-co-L-laktid ; poly ε-kaprolakton-co-L-laktid N-vinylpyrrolidon; maleinsyraanhydrid; akrylamid; akrylsyra; hyaluronsyra; in vitro nedbrytning; Polymer chemistry; Polymerkemi;

   Abstract : Gasfasympning är en del i den moderna strategin för optimering av den molekylära designen av biomaterial. Kovalent ytmodifiering med hydrofila vinylmonomerer och koppling med bioaktiva grupper används för att öka biokompatibiliteten och bioaktiviteten hos biomaterialen.. READ MORE

4. 2. POLYPEPTIDES - STRUCTURES AND INTERACTIONS IN MONOLAYERS AND AQUEOUS SOLUTIONS

   Author : Helen Sjögren; Fysikalisk kemi; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Physical chemistry; Fysikalisk kemi; tyrosine ; co-poly-L lysine; phenylalanine ; co-poly-L- lysine; poly-L-glutamate; poly-L-lysine; poly-L-valine; poly-L-isoleucine; poly-gamma-methyl-L-glutamate; poly-L-leucine; monolayer; Langmuir-Blodgett film; CD spectroscopy; random coil; alpha-helix; surfactant stabilisation; polypeptide; polyamino acid;

   Abstract : The aim of this thesis work is to understand and be able to control polypeptide conformation and interactions at interfaces and in solution by changing the solution conditions. For this purpose simple model polypeptides, so-called polyamino acids, have been investigated at the air-liquid interface, as well as in aqueous solutions. READ MORE

5. 3. Covalent Surface Modification of Degradable Polymers for Increased Biocompatibility

   Author : Martina Källrot; Ann-Christine Albertsson; Mikael Lindström; KTH; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Vapor phase grafting; covalent surface modification; solvent free; nano patterned topography; degradable polymers; poly ε-caprolactone ; poly L-lactide ; poly lactide-co-glycolide ; poly trimethylene carbonate ; N-vinylpyrrolidone; maleic anhydride; acrylamide; Gasfasympning; kovalent ytmodifiering; lösningsmedelsfri; nedbrytbara polymerer; nanomönstrad topografi; poly L-laktid ; poly ε-kaprolakton ; poly laktid-co-glykolid ; poly trimetylen karbonat ; N-vinylpyrrolidon; maleinsyraanhydrid; akrylamid; Polymer chemistry; Polymerkemi;

   Abstract : Degradable polymers have gained an increased attention in the field of biomedical applications over the past decades, for example in tissue engineering. One way of improving the biocompatibility of these polymers is by chemical surface modification, however the risk of degradation during the modification procedure is a limiting factor. READ MORE

6. 4. Effects of aluminum borate whiskers in polymeric blends

   Author : Anders L. Persson; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; intrinsically conducting polymer; poly 3-octylthiophene ; aluminium borate whiskers; interpenetrating polymer network; immiscible polymer blend; morphology; Lewis acis-base properties; inverse gas chromatography;

   Abstract : .... READ MORE

7. 5. Filler Controlled Morphology in Polymer Blends

   Author : Anders L. Persson; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; filled polymer blends; Lewis acid-base properties; co-continuous; rheokinetics; viscosity minimation; polymer solid interactions; crystallinity gradient;

   Abstract : The morphology of a polymer blend can be altered very dramatically when a filler is added. Depending on the mutual interactions of the polymers and their individual interactions with the filler, many different filler distributions are possible. READ MORE