Sökning: "Photopolymerization"

Visar resultat 1 - 5 av 15 avhandlingar innehållade ordet Photopolymerization.

  1. 1. Fabrication of polymeric microfluidic devices via photocurable liquid monomers

    Författare :Klas Tommy Haraldsson; Mats K. G. Johansson; Ken Carter; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Photopolymerization; radical photopolymerization; polymerization kinetics; photoinitiation; vinyl ether; maleate; vinyloxy; Polymer chemistry; Polymerkemi;

    Sammanfattning : Microfluidic devices have long been considered an ideal tool for rapid and inexpensive chemical analysis and reactions in areas ranging from point-of-care health to national security applications. However, fabricating microfluidic devices is time consuming, difficult and above all expensive. LÄS MER

  3. 2. Exploring bio-based monomers for UV-curable polymer networks

    Författare :Sara Brännström; Eva Malmström; Yves Leterrier; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Bio-based; polymers; vinyl ether; polyester; photopolymerization; lipase; Fiber- och polymervetenskap; Fibre and Polymer Science;

    Sammanfattning : Increased environmental awareness and concern has led to a high demand for sustainable, bio-based materials. Consequently, there is a need for research and development of new bio-based polymeric materials that can be synthesized via routes eliminating excessively toxic reactants and by-products. LÄS MER

  4. 3. Thiol−ene Coupling of Renewable Monomers : at the forefront of bio-based polymeric materials

    Författare :Mauro Claudino; Mats K. G. Johansson; Mats Jonsson; Anna Wistrand; Sven Göthe; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Thiol-ene chemistry; monounsaturated fatty-acids; renewable resources; cis trans-isomerization; photopolymerization; networks; polyesters; thermal viscoelastic properties; thin-films; unsaturated macro lactones; coatings;

    Sammanfattning : Plant derived oils bear intrinsic double-bond functionality that can be utilized directly for the thiol–ene reaction. Although terminal unsaturations are far more reactive than internal ones, studies on the reversible addition of thiyl radicals to 1,2-disubstituted alkenes show that this is an important reaction. LÄS MER

  5. 4. Signal Enhancement by Dynamic Polymers in Quartz Crystal Microbalance Applications

    Författare :Gunnar Dunér; Olof Ramström; Ian Nicholls; Andra Dedinaite; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Signal enhancement; QCM; polyelectrolytes; hydrogel; iniferter; photopolymerization; dynamic polymers; Chemistry; Kemi;

    Sammanfattning :  This licentiate thesis presents studies of signal enhancement by dynamic polymers in quartz crystal microbalance (QCM) applications. The aim of the study has been to determine the potential for the use of polymers on QCM sensors for signal enhancement in molecular interaction studies. LÄS MER

  7. 5. On Characterization and Optimization of Surface Topography in Additive Manufacturing Processes

    Författare :AMOGH VEDANTHA KRISHNA; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; areal surface texture parameters; additive manufacturing; power spectral density; vat-photopolymerization; laser-based Powder bed fusion; fused deposition modeling; profile parameters; feature-based characterization; and multiple regression.; scale-sensitive fractal analysis; surface metrology;

    Sammanfattning : With its ability to construct components through the layer-by-layer deposition of material, Additive Manufacturing (AM), more commonly known as "3D printing", has revolutionized the manufacturing industries. Not only can AM produce complex lightweight designs, but it can also streamline the supply chain, allowing businesses to more quickly and easily meet customer demand. LÄS MER