Sökning: "glycol"

Visar resultat 11 - 15 av 208 avhandlingar innehållade ordet glycol.

1. 11. Symmetry in Asymmetric Catalysis and Hydrogen Bond-Based Self-Assembly : Synthesis and Investigations

   Författare :Yutang Li; Centrum för analys och syntes; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; asymmetric catalysis; bissalen; asymmetric ring opening; pseudo-Cs; hydrogen bonding; self-assembly; C3 symmety; trilactam; scXRD; solubility; epoxidation; rearrangement; Baeyer-Villiger reaction; transition state; DFT calculation; cyclodextrin; polyethylene glycol; amphiphilicity;

   Sammanfattning : The thesis elaborates on four different projects focusing on synthesizing symmetry-related molecules and investigating their performance as catalysts for asymmetric catalysis or as monomers for hydrogen bond-based self-assembly.Chapter 2 describes a new method to desymmetrize a meso-ligand. LÄS MER

3. 12. lnterfacial Design and Characterization of Oligo(ethylene glycol) Self-Assembled Monolayers : Templates for Biomolecular Architectures

   Författare :Ramūnas Valiokas; Stephen D. Evans; Linköpings universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

   Sammanfattning : This thesis presents efforts to better understand and control the interfacial properties of oligo(ethylene glycol)-containing self-assembled monolayers (OEG SAMs) on gold. This has been done by means of molecular and interfacial design, followed by extensive characterization of the SAMs using a variety of surface analytical techniques. LÄS MER

4. 13. Salting-out of Colloidal Latex Particles Grafted with Poly(ethylene glycol)

   Författare :Kristin Jonsson; Göteborgs universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; PEG; fluorinated colloids; monodisperse spheres; steric stability; emulsion polymerization; SAXS; crosslinking; salting-out; interfacial tension; SANS;

   Sammanfattning : Colloidal particles dispersed in a medium are important both in nature and in industry. The stability of colloidal particles is determined by the interactions between them and can be improved by steric stabilization. There is no conclusive understanding of how these sterically stabilized particles become unstable. LÄS MER

5. 14. Functional polymer brush coatings for nanoscale devices

   Författare :John Andersson; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; poly ethylene glycol ; nanopores; electrochemistry; silatranes; func- tional materials; polymer brush; Nanobiotechnology; interpolymer complex; pH re- sponsive; macromolecular gating.;

   Sammanfattning : Nanobiotechnology is an interdisciplinary field that has garnered considerable attention for offering exciting new opportunities of studying and manipulating biomolecules at the nanoscale. This prospect bears large potential benefits in the field of medicine and the whole life science sector in general. LÄS MER

7. 15. Towards Functional Nanopores Using Polymers

   Författare :Gustav Emilsson; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; surface plasmon resonance; protein adsorption; poly ethylene glycol ; nanopores.; grafting; poly N-isopropylacrylamide ; polymer brush;

   Sammanfattning : In nature there are several examples of nanometer sized gateways able to control the passage of molecules and other substances with remarkable precision. This has inspired research in trying to create nanoscale openings which resemble such gateways. LÄS MER