Sökning: "toluene"

Visar resultat 1 - 5 av 39 uppsatser innehållade ordet toluene.

1. 1. Synthesis of aromatic thiol ligands for the formation of thermoelectric materials

   Master-uppsats, KTH/Kemi

   Författare :Clément Bouchut; [2024]
   Nyckelord :ligand; organic chemistry; organic synthesis; thermoelectric materials; thiol; ligand; organisk kemi; organisk syntes; termoelektriska material; tiol;

   Sammanfattning : I detta arbete så har en uppsättning aromatiska ditiol-ligander framställts (3,5-dimerkaptobensoesyra I, methyl-3,5-dimerkaptobensoat II, 3,5-dimerkaptotoluen III, 4,6-dimerkaptoisoftalaldehyde IV). En trestegssyntes innehållande Newman-Kwart omlagring som nyckelsteg användes för framställning av föreningarna I-III medan förening IV togs fram via en annan syntesväg. LÄS MER

3. 2. Bläckborttagning från ben med hjälp av geler En kvantitativ studie för bläckborttagning på björnbäcken och björnkranium från Naturhistoriska riksmuseet

   Kandidat-uppsats, Göteborgs universitet/Institutionen för kulturvård

   Författare :Engla Nordin; [2023-11-07]
   Nyckelord :Conservation; reversibility; bones; FTIR; nanogels; hydrogels; ink.;

   Sammanfattning : This bachelor's thesis has investigated four different hydrogels loaded in different solvents efficiency to remove unknown ink from four pelvic bones and one skull from five bear individuals that belongs to The Swedish Museum of Natural History. The experimental part of the thesis consists of an FTIR analysis together with microscopy and macroscopy analysis of the ink on the bear skeletons, as well as some tests of different gel-solvent combinations on a moose skull. LÄS MER

4. 3. Synthesis and characterization of lactic acid-based elastomers

   Master-uppsats, Högskolan i Borås/Akademin för textil, teknik och ekonomi

   Författare :Afsaneh Makhdoumi; [2023]
   Nyckelord :Lactic acid; Elastomer; Bio-based elastomer; Renewable resource;

   Sammanfattning : Synthesized polymer from bio-based and renewable resources reported as an attractive substitution for fossil-fuel based polymers. Therefore, this work has focused on using sustainable material for production of elastomers to reduce the environmental impact of fossil-based elastomers and overcome the shortage of non-renewable fuels. LÄS MER

5. 4. Modeling competitive adsorption of binary mixtures of volatile organic compounds

   Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

   Författare :Michelle Janus; [2023]
   Nyckelord :;

   Sammanfattning : Adsorption is a common technique for the removal of volatile organic compounds (VOCs) from industrial waste streams. The multi-component adsorption on zeolites, particularly the interactions between VOCs and water vapor is sparsely understood and is yet to be described by empiric and full-physical models. LÄS MER

7. 5. Study of yield variation in a pharmaceutical manufacturing process and optimization of purification subsection : By a design of experiments study of the production parameters and a laboratory study of the purification step

   Master-uppsats, Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

   Författare :Sandra Lord; [2022]
   Nyckelord :Yield variations; activated carbon; pharmaceutical industry; purification; design of experiments; optimization; Utbytesvariation; aktivt kol; läkemedelsindustrin; reningssteg; experimentell design; optimering;

   Sammanfattning : The product R1-MR2E is an ester formed from an esterification of a carboxylic acid and an alcohol at Cambrex Karlskoga AB. The production of the intermediate R1-MR2E is a large-scale production and there are two main objectives and two sub-objectives that this project aims to study of the manufacturing. LÄS MER