Essays about: "polymerization."

Showing result 6 - 10 of 65 essays containing the word polymerization..

1. 6. Sustainable Polymer Production: Investigating Synthesis and Copolymerization of Cyclic Ketene Acetals

   University essay from KTH/Kemiteknik

   Author : Soufian Bourraman; Stella Staffas; Adam Brandt; Simon Isaksson; [2023]
   Keywords : Monomers; polymers; radical; radical ring opening polymerization; polymerization; BMDO; MMA; MVL; MBL; comonomer; copolymer; rROP; sustainable; biobased; degradable; monomer synthesis; plastic; polyester; bulk; solution; NMR; FTIR; TGA; DSC; SEC; hydrolysis; molecular weight; diol; ester bonds;

   Abstract : The large amount of non-degradable plastic waste has become a significant environmental concern, leading to an increased need for degradable plastics. Here in, to create degradable polymers, polyesters were produced through radical ring opening polymerization using cyclic ketene acetals. READ MORE

3. 7. Multifunctional ice and snow repellent coatings for photovoltaic modules

   University essay from Uppsala universitet/Solcellsteknik

   Author : Gunnar Sandkvist; [2023]
   Keywords : sol-gel; superhydrophobic; dip-coating; anti-reflective; silica;

   Abstract : Implementation of solar power by photovoltaic modules in cold climates, such as northern Sweden, implies several challenges. Ice and snow coverage not only leads to reduction in energy production due to shading, but it also puts equipment at risk from additional weight. READ MORE

4. 8. ROP in novel biobased ionic liquids towards cellulose functionalization

   University essay from KTH/Fiber- och polymerteknologi

   Author : Rebecca Mattsson; [2023]
   Keywords : Ionic liquids; SI-ROP; coROP; polyesters; cellulose; Jonvätska; yt-initierad Ringöppnings-polymerisation; ringöppnings-sampolymerisation; polyestrar; cellulosa;

   Abstract : Ett nytt sätt att aktivera cellulosa för kemisk modifiering med hjälp av en miljövänlig process har utvecklats innan starten av detta projekt. Två versionen av den nyskapade betain-baserade jonvätskan, BBIL har syntetiserats, en som använder mesylat som motjon, M-BBIL och en som använder acetat, A-BBIL. READ MORE

5. 9. CHARACTERIZATION AND EVALUATION OF A NIPAM POLYMER GEL MRI DOSIMETER SYSTEM

   University essay from

   Author : Christian Waldenberg; [2022-11-08]
   Keywords : Medical physics; Normoxic polymer gel dosimeter; NiPAM;

   Abstract : Purpose: The normoxic polymer gel dosimeter based on N-isopropyl acrylamide (NiPAM) is a promising full 3D-dosimeter with high spatial resolution and near tissue equivalency. However, limited work have been done in vestigating this dosimeter. The dose response and reproducibility of a NiPAM dosimeter was investigated. READ MORE

6. 10. Polymer-based additive manufacturing: optimization for high-performance degradable polymers

   University essay from KTH/Fiber- och polymerteknologi

   Author : Danjing Chen; [2022]
   Keywords : copolymerization; fused filament fabrication; degradable polymer; scaffold; 3D printing; sampolymerisering; tillverkning av filament; nedbrytbar polymer; tredimensionella matriser; 3D printing;

   Abstract : I det här utvecklas en reproducerbar polymerisationsmetod för att uppnå en stabil produktion av poly(ε-caprolakton-co-p-dioxanon) (PCLDX), skala upp filamenttillverkningen för att producera 1.75 mm långa filament och optimera 3D-utskriftsprocessen för att tillverka ställningar/anordningar för mjukvävnadsteknik. READ MORE