Search for dissertations about: "Trimethylene carbonate"

Showing result 1 - 5 of 18 swedish dissertations containing the words Trimethylene carbonate.

  2. 1. Functional Cyclic Carbonate Monomers and Polycarbonates : Synthesis and Biomaterials Applications

    Author : Jonas Mindemark; Tim Bowden; Andrew Dove; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; DNA condensation; gene delivery; ionomers; polyplexes; self-assembly; amphiphiles; biodegradable; biological applications of polymers; transfection; cyclic carbonate monomers; polycarbonates; semicrystalline polymers; click chemistry; triazoles; cycloaddition; Kemi med inriktning mot polymerkemi; Chemistry with specialization in Polymer Chemistry;

    Abstract : The present work describes a selection of strategies for the synthesis of functional aliphatic polycarbonates. Using an end-group functionalization strategy, a series of DNA-binding cationic poly(trimethylene carbonate)s was synthesized for application as vectors for non-viral gene delivery. READ MORE

  4. 2. Design of Functional Degradable Aliphatic Polyesters and Porous Tissue Engineering Scaffolds

    Author : Peter Plikk; Ann-Christine Albertsson; Marek Kowalczuk; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Ring-opening polymerization; Stannous octoate; 2; 2’-azoisobutyronitrile; 1; 5-dioxepane-2-one; ε-caprolactone; L-lactide; Trimethylene carbonate; 2-methylene-1; 3-dioxe-5-pene; Copolymer; Porous scaffold; Porous tubular scaffold; Electron beam; Gamma irradiation; Polymer chemistry; Polymerkemi;

    Abstract : The regeneration of damaged tissues or organs using porous scaffolds which act as temporary guides for the patient’s own cells, i.e. tissue engineering, is a means to overcome the shortcomings of current standard medical treatments. READ MORE

  5. 3. Synthesis of Biomedical Polymers and Scaffold Design

    Author : Therese Tyson; Ann-Christine Albertsson; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; ring-opening polymerization; tin alkoxide initiator; stannous octoate; poly p-dioxanone ; copolymer; L-lactide; trimethylene carbonate; degradable porous scaffold; Polymer chemistry; Polymerkemi;

    Abstract : This work has focused on the development of new improved synthesis methods of biodegradable aliphatic polymers and on the preparation of porous scaffolds for tissue engineering applications. The aim of the first part of the work was the synthesis of poly(p-dioxanone) (PPDX) homopolymers with high molecular weights using the cyclic tin alkoxide initiator 1-di-n-butyl-1-stanna-2,5-dioxacyclopentane. READ MORE

  6. 4. 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

  7. 5. 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