Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Iwona Koltsov"'
Autor:
Sonia Żółtowska, Iwona Koltsov, Krzysztof Alejski, Hermann Ehrlich, Michał Ciałkowski, Teofil Jesionowski
Publikováno v:
Polymer Testing, Vol 97, Iss , Pp 107148- (2021)
The kinetic parameters of thermal degradation of 3D skeletal biopolymer spongin - isolated from the marine demosponge Hippospongia communis, using thermogravimetric analysis (TG) were evaluated. The kinetic parameters of the pyrolysis in a nitrogen a
Externí odkaz:
https://doaj.org/article/87462a54a31543728a777822380b94fb
Autor:
Elżbieta Pietrzykowska, Barbara Romelczyk-Baishya, Agnieszka Chodara, Iwona Koltsov, Hilary Smogór, Jan Mizeracki, Zbigniew Pakieła, Witold Łojkowski
Publikováno v:
Materials, Vol 15, Iss 1, p 184 (2021)
Polymer nanocomposites have been extensively researched for a variety of applications, including medical osteoregenerative implants. However, no satisfactory solution has yet been found for regeneration of big, and so-called critical, bone losses. Th
Externí odkaz:
https://doaj.org/article/51459a1d8fd34d0faf511d26cada4b4b
Publikováno v:
Energies, Vol 14, Iss 24, p 8556 (2021)
Air pollution with particulate matter from transport sources is a serious problem in terms of air quality and its impact on human health. The article attempts to test the emitted particles from piston engines in terms of their physical properties and
Externí odkaz:
https://doaj.org/article/e73025a141a643dcb61a28db5259d858
Autor:
Iwona Koltsov, Jacek Wojnarowicz, Piotr Nyga, Julita Smalc-Koziorowska, Svitlana Stelmakh, Aleksandra Babyszko, Antoni W. Morawski, Witold Lojkowski
Publikováno v:
Molecules, Vol 24, Iss 5, p 874 (2019)
Semiconducting polymers are promising materials for photocatalysis, batteries, fuel applications, etc. One of the most useful photocatalysts is polymeric carbon nitride (PCN), which is usually produced during melamine condensation. In this work, a no
Externí odkaz:
https://doaj.org/article/270e7223a2124501af78ffdf26c09159
Autor:
Łukasz Klapiszewski, Artur Jamrozik, Beata Strzemiecka, Iwona Koltsov, Bartłomiej Borek, Danuta Matykiewicz, Adam Voelkel, Teofil Jesionowski
Publikováno v:
Molecules, Vol 22, Iss 11, p 1920 (2017)
The main aim of the present study was the preparation and comprehensive characterization of innovative additives to abrasive materials based on functional, pro-ecological lignin-alumina hybrid fillers. The behavior of lignin, alumina and lignin-Al2O3
Externí odkaz:
https://doaj.org/article/934c3a17ee4b43e598a260cf6bab1db3
Thermal stability of polymeric carbon nitride (PCN)-Al2O3–ZrO2 nanocomposites used in photocatalysis
Autor:
Iwona Koltsov
Publikováno v:
Journal of Thermal Analysis and Calorimetry. 147:7675-7682
Polymeric carbon nitride (PCN) was recently found to have extensive applications in the field of photocatalysis. Knowledge about thermal stability of PCN nanocomposites is crucial for this application and designing the final product. In this work, th
Autor:
Stefan Tyski, Paweł J. Zawadzki, Rafał Pokrowiecki, Iwona Koltsov, Agnieszka Mielczarek, Witold Lojkowski, Tomasz Zareba, Jacek Wojnarowicz
Publikováno v:
International Journal of Nanomedicine. 14:9235-9257
Aim The aims of this study were to investigate new nano-formulations based on ZnO and Ag nanoparticle (NP) compounds when used against clinical strains of oral gram-positive and gram-negative bacteria, and to examine the stability and behaviour of na
The effect of lignin-alumina hybrid additive on the properties of composition used in abrasive tools
Autor:
Iwona Koltsov, Teofil Jesionowski, Beata Strzemiecka, Artur Jamrozik, Adam Voelkel, Łukasz Klapiszewski, Paulina Jakubowska
Publikováno v:
International journal of biological macromolecules. 161
Lignin-Al2O3 hybrids were tested as effective additives for application in abrasive materials. The main focus was on the reduction of environmental pollution. The emission of volatile compounds, mainly phenol and formaldehyde, was investigated using
Publikováno v:
Polimery. 63:700-707
Linear bio-based polyester polyols were prepared with the use of succinic acid and 1,3-propanediol (both with natural origin). Tetraisopropyl orthotitanate (TPT) was used as a catalyst. In order to determine the effect of various synthesis temperatur
Publikováno v:
Polymer Degradation and Stability. 151:90-99
One of the most important information about polyesters is their thermal stability and phase transition temperatures. These characteristics give information about the promising behavior of the polyester during processing. In this work, linear bio-base