Sökning: "organic solvents"

Visar resultat 16 - 20 av 222 avhandlingar innehållade orden organic solvents.

1. 16. Hydroarylation of Fullerene C60 Using Arylboronic Acids via Rhodium Catalysis : Improving the Outcomes and Simplifying the Conditions

   Författare :Merve Ergun Dönmez; Helena Grennberg; Luke Odell; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; fullerene; C60; hydroarylation; Chemistry with specialization in Organic Chemistry; Kemi med inriktning mot organisk kemi;

   Sammanfattning : Hydroarylation with arylboronic acids is one of the functionalization methods for synthesis of modified fullerenes. In this work, we provide a fast and reproducible one-phase method for hydroarylation of fullerene using boronic acids and an analytical HPLC method that efficiently separates unreacted C60 and product from a hydroarylation reaction mixture as well as a fulleropyrrolidine reaction mixture. LÄS MER

3. 17. Organic Synthesis in Nonionic Microemulsions

   Författare :Maria Häger; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; organic reaction; phase behaviour; microemulsion; reaction kinetics;

   Sammanfattning : The aim of this work has been to explore the use of microemulsions as reaction media for organic synthesis. Another important aim has been to improve the understanding of the reaction kinetics and the mechanism of the reaction in this type of surfactant system. LÄS MER

4. 18. Development of Mild Methods for Selective Covalent Functionalization of Graphene

   Författare :Anna Lundstedt; Grennberg Helena; Bo Wegge Laursen; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Polycyclic aromatic hydrocarbons; graphene models; graphite; local ionization energy surfaces; graphene functionalization; Chemistry with specialization in Organic Chemistry; Kemi med inriktning mot organisk kemi;

   Sammanfattning : This thesis discusses methods for the comparatively mild covalent functionalization of graphene. Several graphene models were investigated: polycyclic aromatic hydrocarbons (PAHs), chemical vapor deposition (CVD)-graphene on SiO2/Si substrate, graphite foil, graphite flakes, kish graphite and highly oriented pyrolytic graphite. LÄS MER

5. 19. Shining Light on Benzothiadiazoles and Indolines : Photophysical Properties and Cancer Cell Imaging

   Författare :Susanne Doloczki; Christine Dyrager; Andrey Klymchenko; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Chemistry with specialization in Organic Chemistry; Kemi med inriktning mot organisk kemi;

   Sammanfattning : Fluorescent molecules, also called fluorophores, play an important role in life sciences. As crucial tools in fluorescence microscopy, they can be used to study biological processes on a cellular level, which is a fundamental aspect of cancer research. LÄS MER

7. 20. Psychological methods for the assessment of chronic toxic encephalopathy and multiple chemical sensitivity

   Författare :Kai Österberg; Institutionen för psykologi; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; industrial medicine; Occupational health; Psychology; organic solvents; personality; neuropsychology; multiple chemical sensitivity; toxic encephalopathy; Organic chemistry; Psykologi; Yrkesmedicin; arbetsmiljömedicin; Organisk kemi;

   Sammanfattning : The dissertation deals with psychological methods aimed at improving the understanding and assessment of two disorders related to contact with chemicals: solvent-induced chronic toxic encephalopathy (TE) and multiple chemical sensitivity (MCS). The main aim of Paper I was to study whether the addition of some newer psychological tests of complex attention and executive functions to a traditional test battery would improve the detection of TE. LÄS MER