Sökning: "Solvent evaporation"
Visar resultat 1 - 5 av 34 avhandlingar innehållade orden Solvent evaporation.
1. Mass Transport through Phase Separated Films - Effects of Ethyl Cellulose Molecular Weight on Cellulose Derivative Blends for Pharmaceutical Coatings
Sammanfattning : Polymer blends are utilized for a variety of applications, not least in pharmaceutical coatings for controlled release of drugs. For instance, blends of ethyl cellulose (EC) and the water-soluble hydroxypropyl cellulose (HPC) can be used to coat drug pellets for oral extendedrelease formulations. LÄS MER
2. Structure control by phase separation and influence on mass transport in films for controlled release
Sammanfattning : Controlled release coatings for oral pharmaceutics are often made of cellulose derivatives. Such coatings can be used to promote a prolonged therapeutic concentration in the blood by a slow drug delivery in the gastrointestinal tract. LÄS MER
3. Molasses Purification and Valorisation : Towards a sustainable production of hydroxymethylfurfural
Sammanfattning : The industrial transition from petrochemical-based to a more sustainable and circular economy requires the utilisation of renewable biobased raw materials that do not compete with other important industries, such as the food sector, preferably wastes or low value by-products. 5-hydroxymethylfurfural (HMF) is a versatile platform chemical that has great potential for utilisation in various sectors in a future bioeconomy, as it can be produced from sugars. LÄS MER
4. Fatty acid methyl esters as reactive diluents in solvent-borne thermally cured coil-coatings
Sammanfattning : This work describes how a fatty acid methyl ester (FAME) derived from a vegetable oil can be introduced as reactive diluent in a solvent-borne thermally cured coil-coating system. The evaluated reactive diluent, rape seed methyl ester (RME), has been evaluated both in a fully formulated clear coat system and via model studies. LÄS MER
5. Methods for the preparation of capillary columns for gas chromatography
Sammanfattning : This thesis is dedicated to column technology, and describes methods for the preparation of efficient, well deactivated and durable capillary columns for gas chromatography.Problems associated with column preparation are discussed in conjunction with a brief literature survey of the most important contributions to column technology since the concept of capillary gas chromatography was first introduced by M. LÄS MER