Dynamic thermogravimetric degradation of gamma radiolytically synthesized Ag-PVA nanocomposites
Nema prikaza
Autori
Krklješ, Aleksandra N.Marinović-Cincović, Milena
Kačarević-Popović, Zorica M.
Nedeljković, Jovan
Članak u časopisu
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
The degradation kinetics of gamma radiolytically synthesized Ag-PVA nanocomposites was investigated by thermogravimetric method under dynamic conditions (30-600 degrees C) in an inert atmosphere. Thermogravimetric analysis showed that thermal degradation of composites was a two-stage process for the lower amount of nanofiller and single-stage for the higher amount of nanotiller. The Vyazovkin model-free kinetics method was applied to calculate the activation energy (E-a) of the degradation process as a function of conversion and temperature. At a given degradation temperature, PVA as a host in nanocomposite presents lower reaction velocity, while its E-a is higher than that of pure PVA. (c) 2007 Elsevier B. V. All rights reserved.
Ključne reči:
Ag-PVA nanocomposites / gamma irradiation / dynamic thermogravimetric analysis / model-free kineticsIzvor:
Thermochimica Acta, 2007, 460, 1-2, 28-34
DOI: 10.1016/j.tca.2007.05.015
ISSN: 0040-6031
WoS: 000248784300005
Scopus: 2-s2.0-34447292585
Kolekcije
Institucija/grupa
VinčaTY - JOUR AU - Krklješ, Aleksandra N. AU - Marinović-Cincović, Milena AU - Kačarević-Popović, Zorica M. AU - Nedeljković, Jovan PY - 2007 UR - https://vinar.vin.bg.ac.rs/handle/123456789/3269 AB - The degradation kinetics of gamma radiolytically synthesized Ag-PVA nanocomposites was investigated by thermogravimetric method under dynamic conditions (30-600 degrees C) in an inert atmosphere. Thermogravimetric analysis showed that thermal degradation of composites was a two-stage process for the lower amount of nanofiller and single-stage for the higher amount of nanotiller. The Vyazovkin model-free kinetics method was applied to calculate the activation energy (E-a) of the degradation process as a function of conversion and temperature. At a given degradation temperature, PVA as a host in nanocomposite presents lower reaction velocity, while its E-a is higher than that of pure PVA. (c) 2007 Elsevier B. V. All rights reserved. T2 - Thermochimica Acta T1 - Dynamic thermogravimetric degradation of gamma radiolytically synthesized Ag-PVA nanocomposites VL - 460 IS - 1-2 SP - 28 EP - 34 DO - 10.1016/j.tca.2007.05.015 ER -
@article{ author = "Krklješ, Aleksandra N. and Marinović-Cincović, Milena and Kačarević-Popović, Zorica M. and Nedeljković, Jovan", year = "2007", abstract = "The degradation kinetics of gamma radiolytically synthesized Ag-PVA nanocomposites was investigated by thermogravimetric method under dynamic conditions (30-600 degrees C) in an inert atmosphere. Thermogravimetric analysis showed that thermal degradation of composites was a two-stage process for the lower amount of nanofiller and single-stage for the higher amount of nanotiller. The Vyazovkin model-free kinetics method was applied to calculate the activation energy (E-a) of the degradation process as a function of conversion and temperature. At a given degradation temperature, PVA as a host in nanocomposite presents lower reaction velocity, while its E-a is higher than that of pure PVA. (c) 2007 Elsevier B. V. All rights reserved.", journal = "Thermochimica Acta", title = "Dynamic thermogravimetric degradation of gamma radiolytically synthesized Ag-PVA nanocomposites", volume = "460", number = "1-2", pages = "28-34", doi = "10.1016/j.tca.2007.05.015" }
Krklješ, A. N., Marinović-Cincović, M., Kačarević-Popović, Z. M.,& Nedeljković, J.. (2007). Dynamic thermogravimetric degradation of gamma radiolytically synthesized Ag-PVA nanocomposites. in Thermochimica Acta, 460(1-2), 28-34. https://doi.org/10.1016/j.tca.2007.05.015
Krklješ AN, Marinović-Cincović M, Kačarević-Popović ZM, Nedeljković J. Dynamic thermogravimetric degradation of gamma radiolytically synthesized Ag-PVA nanocomposites. in Thermochimica Acta. 2007;460(1-2):28-34. doi:10.1016/j.tca.2007.05.015 .
Krklješ, Aleksandra N., Marinović-Cincović, Milena, Kačarević-Popović, Zorica M., Nedeljković, Jovan, "Dynamic thermogravimetric degradation of gamma radiolytically synthesized Ag-PVA nanocomposites" in Thermochimica Acta, 460, no. 1-2 (2007):28-34, https://doi.org/10.1016/j.tca.2007.05.015 . .