National Repository of Grey Literature 2 records found  Search took 0.01 seconds. 
Determination of Hydroxyacids including their Low- and High Molecular Derivatives
Lysáková, Klára ; Mravcová, Ludmila (referee) ; Čáslavský, Josef (advisor)
This bachelor thesis deals with the determination of hydroxy acids and their low and high molecular polymers. The theoretical part deals with their properties, production and utilization. The polymers of these substances are used as biodegradable plastics and as absorbable sewing materials. The experimental part is focused on the determination of the total component and on the composition and amount of impurities of selected samples of ethyl lactate, lactides and polylactide. Analysis was performed by gas chromatography (GC) and tandem techniques using GC/MS and Head-Space-GC/MS analysis.
Determination of Hydroxyacids including their Low- and High Molecular Derivatives
Lysáková, Klára ; Mravcová, Ludmila (referee) ; Čáslavský, Josef (advisor)
This bachelor thesis deals with the determination of hydroxy acids and their low and high molecular polymers. The theoretical part deals with their properties, production and utilization. The polymers of these substances are used as biodegradable plastics and as absorbable sewing materials. The experimental part is focused on the determination of the total component and on the composition and amount of impurities of selected samples of ethyl lactate, lactides and polylactide. Analysis was performed by gas chromatography (GC) and tandem techniques using GC/MS and Head-Space-GC/MS analysis.

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