Sökning: "Limonene"
Visar resultat 6 - 10 av 40 avhandlingar innehållade ordet Limonene.
6. Diffusion in Poly(vinyl alcohol) and Polyethylene as Determined by Computational Simulations and Modeling
Sammanfattning : Poly(vinyl alcohol) and polyethylene polymer systems werebuilt in order to study their transport properties (diffusion).First a verification of the AMBER force field was conducted fora poly(vinyl alcohol) system built from a chain with 145repeating units. NPT-molecular dynamics simulations attemperatures between 400 and 527 K were performed. LÄS MER
7. Atmospheric Chemistry of Volatile Organic Compounds: Oxidation Products, Mechanisms and Secondary Organic Aerosol Formation
Sammanfattning : The results from this work are a piece in understanding the complex puzzle of atmospheric aerosol formation. Secondary organic aerosol (SOA) formed by the oxidation of volatile organic compounds (VOC) in the atmosphere is a key component of air pollution with a strong negative impact on human health and influence on climate, but its formation is poorly understood. LÄS MER
8. Source-specific volatile organic compounds in human breath, wood smoke and biogas
Sammanfattning : Volatile biogenic compounds are often overlooked in air quality studies. This work deals with the analysis of specific organic compounds of biogenic origin and with their sources. General aspects of indoor air chemistry and measurements of volatile organic compounds in indoor air are also discussed. LÄS MER
9. Limonene Hydroperoxides in Allergic Contact Dermatitis. Radical Formation, Sensitizing Capacity and Immunogenic Complex Formation
Sammanfattning : Contact allergy to fragrance compounds is an increasing problem in the western countries today. R-Limonene is one of the most common fragrance compounds; it is used in hygiene products and cosmetics as well as in industrial products such as hand cleansers and degreasers. LÄS MER
10. Quantum Chemical Modeling of Asymmetric Enzymatic Reactions : Applications to Limonene Epoxide Hydrolase and Arylmalonate Decarboxylase
Sammanfattning : In this thesis, density functional theory has been employed to study the reactionmechanisms of two enzymes with possible applications in asymmetric biocatalysis.To reproduce and rationalize the stereoselectivity of the enzymes, quite large cluster models that account for the chiral environment of the active site have been used. LÄS MER