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Dry gel forms - aerogels, xerogels - preparation, properties and potential use.
Sedlář, Marian ; Smilek, Jiří (referee) ; Sedláček, Petr (advisor)
The content of this bachelor thesis was to find out what influence has the drying of hydrogel on its internal structure on an appropriate model hydrogel system. In the theoretical part of this thesis selected methods of structural analysis that are commonly used for characterization on gels in their original hydrated state and in dry state were described. In the practical part, agarose based hydrogels with different concentrations and with various additions of polyelectrolytes were chosen as the model hydrogel system. Cryo-scanning electron microscopy and turbidimetry were used for the structural analysis of hydrogels. For the dry gels, scanning microscopy and mercury porosimetry were used. The obtained data and results for our model system can be use in analyse of other hydrogel systems and their dry forms.
Dry gel forms - aerogels, xerogels - preparation, properties and potential use.
Sedlář, Marian ; Smilek, Jiří (referee) ; Sedláček, Petr (advisor)
The content of this bachelor thesis was to find out what influence has the drying of hydrogel on its internal structure on an appropriate model hydrogel system. In the theoretical part of this thesis selected methods of structural analysis that are commonly used for characterization on gels in their original hydrated state and in dry state were described. In the practical part, agarose based hydrogels with different concentrations and with various additions of polyelectrolytes were chosen as the model hydrogel system. Cryo-scanning electron microscopy and turbidimetry were used for the structural analysis of hydrogels. For the dry gels, scanning microscopy and mercury porosimetry were used. The obtained data and results for our model system can be use in analyse of other hydrogel systems and their dry forms.

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