Sökning: "Acetals"

Visar resultat 6 - 10 av 22 avhandlingar innehållade ordet Acetals.

1. 6. Syntheses of some oligosaccharides containing α-galactopyranosyl groups and reductive cleavage of acetals

   Författare :Hans Hultberg; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

   Sammanfattning : .... LÄS MER

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

   Författare :Jenny Undin; Ann-Christine Albertsson; Mats Johansson; Monica Ek; KTH; []
   Nyckelord :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;

   Sammanfattning : 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. LÄS MER

4. 8. Non-symmetrical pregnane cyclic 16a, 17a-acetals and their C(22) epimers as anti-inflammatory agents : synthesis, structure and topical/systemic activity relationships

   Författare :Arne Thalén; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; PHARMACY; FARMACI;

   Sammanfattning : .... LÄS MER

5. 9. Synthesis of some oligosaccharides with D-galacto- and D-gluco-configuration and reductive opening of carbo-hydrate acetals

   Författare :Stefan Oscarson; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

   Sammanfattning : Syntheses of the following oligosaccharides, required for immunological studies. are discussed: £-trifluoroacetamidophenyl O-a-D-glucopyranosyl-(1+4)-a-D-galactopyranoside, ß-trifluoroacetamidophenyl O-a-D-glucopyranosyl-(1 + 6)-a-D-galactopyranoside, 8-methoxy- carbonyloct-1-yl 0-a-D-galactopyranosyl-(1+3)-fi-ß~9"9alact°Pyranosyl- (1+4)-2-acetamido-2-deoxy-ß-D-glucopyranoside, methyl û-a-D-fuco- pyranosyl-(1+4)-ß-D-galactopyranoside, methyl û-a-D-galactopyranosyl- (1+4)-ß-D-fucopyranoside and methyl ß-a-D-fucopyranosyl-(1+4)-ß-D- fucopyranoside. LÄS MER

7. 10. Functional Degradable Polymers by a Radical Chemistry approach

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

   Sammanfattning : 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. LÄS MER