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Heterogeneous bipolar membrane and the influence of composition on its properties
Kvasničková, Lucie ; Válek, Robert (referee) ; Neděla, David (advisor)
This work is focused on the preparation of heterogeneous bipolar membranes and studies the influence of different composition on mechanical and physical properties. The main feature of this approach is optimalization of composition following gained data. Theoretical part contains new piece of knowledge in the field of heterogeneous bipolar membranes. Experimental part engages preparation of bipolar ion-exchange membranes on one face cation-selective and on the other one anion-selective. In this case are used variant types of polyethylene.
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Cathodoluminiscence of polysilane composites
Neděla, David ; Kuřitka, Ivo (referee) ; Schauer,, Petr (advisor)
Samples with thin layer of poly[methyl(phenyl)silylene] were prepared for cathodoluminescence measurement. Dependence of cathodoluminescence on temperature was studied on these samples. Spectra of emitted light were measured on the samples when they were gradually heated to 20, 50, 75, 100 and 125°C. Kinetics of the process of poly[methyl(phenyl)silylene] regeneration at higher temperature was observed. Samples of polysilylene were displayed by scanning electron microscopy.
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Heterogeneous bipolar membrane and the influence of composition on its properties
Kvasničková, Lucie ; Válek, Robert (referee) ; Neděla, David (advisor)
This work is focused on the preparation of heterogeneous bipolar membranes and studies the influence of different composition on mechanical and physical properties. The main feature of this approach is optimalization of composition following gained data. Theoretical part contains new piece of knowledge in the field of heterogeneous bipolar membranes. Experimental part engages preparation of bipolar ion-exchange membranes on one face cation-selective and on the other one anion-selective. In this case are used variant types of polyethylene.
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|
|
Cathodoluminiscence of polysilane composites
Neděla, David ; Kuřitka, Ivo (referee) ; Schauer,, Petr (advisor)
Samples with thin layer of poly[methyl(phenyl)silylene] were prepared for cathodoluminescence measurement. Dependence of cathodoluminescence on temperature was studied on these samples. Spectra of emitted light were measured on the samples when they were gradually heated to 20, 50, 75, 100 and 125°C. Kinetics of the process of poly[methyl(phenyl)silylene] regeneration at higher temperature was observed. Samples of polysilylene were displayed by scanning electron microscopy.
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