Search for dissertations about: "hydrolysis and condensation"

Showing result 1 - 5 of 8 swedish dissertations containing the words hydrolysis and condensation.

2. 1. Hydrolytic Synthesis and Physicochemical Properties of TiO2 Nanoparticles: Fundamentals and Applications

   Author : Jenny Perez-Holmberg; Göteborgs universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Titanium dioxide TiO2 ; Nanoparticles; Synthesis; Hydrolysis; Titanium tetrachloride TiCl4 ; Anatase; Brookite; DLS; ES-SMPS; XRD; Collective diffusion; Interfacial processes;

   Abstract : Titanium dioxide (TiO2) nanoparticles were synthesized via the hydrolysis of TiCl4 in order to produce clean, surfactant-free oxide surfaces. By controlling the synthesis and aging conditions, stable particles with well-defined size distributions were obtained. READ MORE

4. 2. Implications of feedstock diversity on forest-based ethanol production

   Author : Balazs Franko; Avdelningen för kemiteknik; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Ethanol; Lignocellulose; Softwood; Spruce; Bark; Forest residues; Steam pretreatment; Enzymatic hydrolysis;

   Abstract : The utilization of lignocellulosic biomass to produce biofuels, such as bioethanol, has the potential to provide a sustainable alternative to fossil fuels, and thus mitigate greenhouse gas emissions from the transportation sector.Forest biomass is expected to be a significant source of such biomass, as it can serve as an abundant and sustainable feedstock for bioethanol production. READ MORE

5. 3. Retrofitting CHP Plant and Optimization of Regional Energy System

   Author : Song Han; Jinyue Yan; Eva Thorin; Mats Westermark; Mälardalens högskola; []
   Keywords : annual performance; combined heat and power; drying; ethanol; integration; part-load.; årliga prestation; kraftvärme; torkning; etanol; integration; del-last.; Energy- and Environmental Engineering; energi- och miljöteknik;

   Abstract : The use of biomass-based combined heat and power (CHP) plants is considered by the EU administration to be an effective way to increase the use of renewables in the energy system, to reduce greenhouse gas emissions and to alleviate the dependency on imported fossil fuels. At present in Sweden, most of the CHP plants are operated in part-load mode because of variations in heat demand. READ MORE

6. 4. Macromolecular synthesis of functional degradable aliphatic polyesters and porous scaffold design

   Author : Sofia Målberg; Ann-Christine Albertsson; Anders Södergård; KTH; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; functional polyesters; condensation polymerization; L-lactide; ε-caprolactone; triblock copolymer; mechanical properties; porous scaffolds; tissue engineering; ring-opening polymerization; Bi III acetate; creatinine; stannous 2-ethylhexanoate; enzyme; degradation products; Polymer chemistry; Polymerkemi;

   Abstract : There is an increasing demand for new materials in biomedical applications with material properties that are highly specific for each application area. The search for new materials requires the creation of materials with suitable mechanical properties, functionalities, three-dimensional structures and a controlled degradation profile. READ MORE

7. 5. Crosslinking of Ethylene Copolymers

   Author : Magnus Palmlöf; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; dibutyltindilaurate; crosslinking; water; ethylene diene copolymers; peroxide; polyethylene; electron beam; crosslinking density; ethylene vinylsilane copolymers;

   Abstract : The chemical reactions taking place when crosslinking poly(ethylene-co-vinyltrimethoxysilane) (EVS) have been studied. Films of EVS were stored in water at 90 °C or treated at processing temperatures in a tubular oven. The different chemical groups involved in the reactions were then followed by FTIR after different treatment times. READ MORE