Search for dissertations about: "methylene acetal"

Found 5 swedish dissertations containing the words methylene acetal.

  1. 1. Synthesis of Conformationally Restricted Oligosaccharides

    University dissertation from Organic Chemistry, Lund University

    Author : Michael Wilstermann; [1997]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Streptococcus suis; E. coli; neoglycolipid; ganglioside-lactam; xylose; methylene acetal; sialic acid; Conformational Restriction; galabiose; Organic chemistry; Organisk kemi;

    Abstract : Gangliosides are sialic acid-containing glycosphingolipids that often are present in increased amounts on tumor cells. Since the gangliosides are hydroxy-acids, they can form lactones. The lactones have been suspected to be more immunogenic than the open forms, but are in practise poor immunogens due to their ease of hydrolysis. READ MORE

  2. 2. Synthesis of functional degradable polymers by radical ring-opening polymerization

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Jenny Undin; Ann-Christine Albertsson; Mats Johansson; Monica Ek; [2012]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; tissue engineering; ring-opening polymerization; 2; 2´-azoisobutyronitrile; cyclic ketene acetals; 2-methylene- 1; 3; 6-trioxocane; 2-methylene- 1; 3-dioxepane; vinyl acetate; coopolymerization;

    Abstract : The increased demand for understanding cell-material interactions and subsequently create personalized implants for tissue engineering has resulted in an increased interest in developing new monomers with functional groups. The focus of the work presented in this thesis has been on the synthesis of functional monomers and the polymerization of these into functional amorphous aliphatic polyesters. READ MORE

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

    University dissertation from Stockholm : KTH

    Author : Peter Plikk; Ann-Christine Albertsson; Marek Kowalczuk; [2009]
    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; NATURAL SCIENCES Chemistry Organic chemistry Polymer chemistry; NATURVETENSKAP Kemi Organisk kemi 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

  4. 4. Functional Degradable Polymers by a Radical Chemistry approach

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Jenny Undin; Ann-Christine Albertsson; Anna Finne-Wistrand; Jukka Seppälä; [2014]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Fiber- och polymervetenskap; Fibre and Polymer Science;

    Abstract : One class of polymers that is inherently of great value for many applications is the aliphatic polyesters. Such polymers are very suitable for use as temporary guides, scaffolds, for tissue formation and other biomedical applications, due to their biocompatibility, degradability and appropriate mechanical properties. READ MORE

  5. 5. Synthetic Pathways to Aliphatic Polyesters and Scaffold Design

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Therese Tyson; Ann-Christine Albertsson; Elisabetta Ranucci; [2011]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURAL SCIENCES Chemistry Organic chemistry Polymer chemistry; NATURVETENSKAP Kemi Organisk kemi Polymerkemi;

    Abstract : As the field of tissue engineering progresses, a continuous development of scaffold fabrication techniques and suitable degradable materials is required to obtain scaffolds with tunable characteristics. This thesis has focused on the development of pathways to synthesize degradable aliphatic polyesters and on the design of highly porous scaffolds from this class of materials. READ MORE