Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

Wyszukujesz frazę "Schmidt, B." wg kryterium: Autor


Wyświetlanie 1-3 z 3
Tytuł:
Flocculation efficiency of hybrid polymers with trivalent metal cations
Autorzy:
Schmidt, B.
Powiązania:
https://bibliotekanauki.pl/articles/779472.pdf
Data publikacji:
2018
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
polyacrylamide copolymers
starch
hybrid polymers
trivalent metal cations
flocculants
Opis:
Acrylamide/acrylic acid copolymers (AAm/AA) have been synthesized by microemulsion polymerization in absence and presence of trivalent cations Al+3  and Fe+3 . Starch materials were obtained by introducing cations Al+3  and Fe+3 , in the form of aqueous solutions of sulphates(VI) (modif. starch/Me+3 ), into the oxidized starch (modif. starch). The flocculation performance of obtained polyacrylamide copolymers and the one based on the natural polymer was compared with the performance of the commercial AAm/AA flocculant (CF). All materials were characterized by capillary viscometry, FTIR and DSC methods. An aqueous suspension of talc was used for the flocculation studies. The flocculation effectiveness was evaluated on the basis of reduction of suspension extinction and the sludge volume. It was found that synthesized AAm/AA/Me+3  copolymers and modif. starch/Me+3  materials exhibit better flocculation properties for a model talc suspension than a commercially available floculant.
Źródło:
Polish Journal of Chemical Technology; 2018, 20, 4; 96-101
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Starch graft copolymers as superabsorbents obtained via reactive extrusion processing
Autorzy:
Zdanowicz, M.
Schmidt, B.
Spychaj, T.
Powiązania:
https://bibliotekanauki.pl/articles/779575.pdf
Data publikacji:
2010
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
akrylowe związki sieciujące
superabsorbenty
akryloamid
kwas akrylowy
modyfikacja skrobii
przeszczep kopolimerów skrobi
superabsorbents
acrylamide
acrylic acid
starch modification
acrylic crosslinkers
reactive extrusion
starch graft copolymers
Opis:
Starch graft copolymers have been obtained via grafting of acrylic monomers i.e. acrylamide (AAm) and acrylic acid (AA) during the reactive extrusion processes. 2,2'-azobis (2-methylpropionamidine) dihydrochloride (AAPH) was used as a radical initiator and N'N-methylenebisacrylamide (MBA), mixture of pentaerythritol triacrylate and pentaerythritol tetraacrylate (trade name PETIA) and alkoxylated pentaerithritol acrylate (trade name Ebecryl 40) were applied as acrylic crosslinkers. The obtained materials were characterized by FTIR and their water sorption properties investigated using swelling (vol. %) and sorption (wt. %) tests. Sorption of water into these graft copolymer samples reached values of ca. 6 – 13 g of water per g of dry materials. It was also found that water sorption values were dependent on ratio of AAm and AA as well as on a type of the applied crosslinking agent.
Źródło:
Polish Journal of Chemical Technology; 2010, 12, 2; 14-17
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
PANI/NaTaO3 composite photocatalyst for enhanced hydrogen generation under UV light irradiation
Autorzy:
Zielińska, B.
Schmidt, B.
Mijowska, E.
Kaleńczuk, R.
Powiązania:
https://bibliotekanauki.pl/articles/778752.pdf
Data publikacji:
2017
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
polyaniline
NaTaO3
composite photocatalysts
hydrogen generation
Opis:
A PANI/NaTaO3  composite was successfully synthesized by an oxidative polymerization of aniline monomer in hydrochloric acid solution containing sodium tantalate. NaTaO3  at a monoclinic structure was produced via hydrothermal method. The photocatalytic activities of the unmodified NaTaO3  and PANI/NaTaO3  were evaluated for hydrogen generation from an aqueous HCOOH solution and under UV light irradiation. The results showed that the evolution rate of H2  increased significantly when NaTaO3  was modified with PANI. The enhancement of the photocatalytic activity of PANI/NaTaO3  composite was ascribed to the effective charge transfer and separation between NaTaO3  and PANI, which reduced their recombination. This indicates that PANI modification of tantalate photocatalysts may open up a new way to prepare highly efficient catalytic materials for H2  generation.
Źródło:
Polish Journal of Chemical Technology; 2017, 19, 3; 115-119
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

    Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies