Sökning: "5-dioxepan-2-one"

Visar resultat 1 - 5 av 14 avhandlingar innehållade ordet 5-dioxepan-2-one.

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

    Författare :Martina Källrot; Ann-Christine Albertsson; Maria Nowokowska; KTH; []
    Nyckelord :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;

    Sammanfattning : 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.. LÄS MER

  2. 2. Novel methods to synthesize aliphatic polyesters of vivid architectures

    Författare :Rajiv Srivastava; Ann-Christine Albertsson; Ronnie Palmgren; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Polyesters; 1; 5-dioxepan-2-one; Caprolactone; Sn Oct 2; Enzyme; Lipase-CA; Ring-Opening Polymerization; Architecture; Tissue Engineering; Polymer chemistry; Polymerkemi;

    Sammanfattning : Cross-linked films of ε-caprolactone (CL) and 1,5-dioxepan-2-one (DXO) having various mole fractions of monomers and different cross-link densities were prepared using 2,2’-bis-(-caprolactone-4-yl) propane (BCP) as cross-linking agent and Sn(Oct)2 as catalyst. Reaction parameters were examined to optimize the film-forming conditions. LÄS MER

  3. 3. Novel Possibilities for Advanced Molecular Structure Design for Polymers and Networks

    Författare :Anna Finne; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; ring-opening polymerization; coordination-insertion; germanium; cyclic tin alkoxides; spirocyclic initiators; poly L-lactide ; poly 1; 5-dioxepan-2-one ; triblock; star-shaped; network; functionalization; morphology; AFM; Polymer chemistry; Polymerkemi;

    Sammanfattning : Synthetic and degradable polymers are an attractive choicein many areas, since it is possible to control the way in whichthey are manufactured; more specifically, pathways tomanipulate the architecture, the mechanical properties and thedegradation times have been identified. In this work,L-lactide, 1,5-dioxepan-2-one and ε-caprolactone were usedas monomers to synthesize polymers with different architecturesby ring-opening polymerization. LÄS MER

  4. 4. Controllable degradation product migration from biomedical polyester-ethers

    Författare :Anders Höglund; Ann-Christine Albertsson; Lars Wågberg; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; degradation products; ε-caprolactone; 1; 5-dioxepan-2-one; 6-hydroxyhexanoic acid; 3- 2-hydroxyethoxy propanoic acid; cross-linking; inflammatory response; Polymer chemistry; Polymerkemi;

    Sammanfattning : The use of degradable biomedical materials has during the past decades indeed modernized medical science, finding applications in e.g. tissue engineering and drug delivery. The key question is to adapt the material with respect to mechanical properties, surface characteristics and degradation profile to suit the specific application. LÄS MER

  5. 5. Controlled Degradation of Polyester-Ethers Revealed by Mass Spectrometry Techniques

    Författare :Anders Höglund; Ann-Christine Albertsson; Jukka Seppälä; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Degradation products; biocompatibility; -caprolactone; 1; 5-dioxepan-2-one; 6-hydroxyhexanoic acid; 3- 2-hydroxyethoxy propanoic acid; oligomers; Polymer chemistry; Polymerkemi;

    Sammanfattning : The use of degradable biomedical materials in e.g. tissue engineering and controlled drug delivery has changed medical science during recent decades. The key question is to adapt the material with respect to mechanical properties, surface characteristics, and degradation profile to suit its intended application. LÄS MER