A study of gamma-irradiated polyethylenes by temperature modulated differential scanning calorimetry
Nema prikaza
Autori
Galović, SlobodankaŠećerov, Bojana Lj.
Trifunovic, S.
Miličević, Dejan S.
Suljovrujić, Edin H.
Članak u časopisu
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
Various polyethylenes (PEs) and the effects of high-energy radiation on their structures were widely studied in the past using conventional Differential Scanning Calorimetry (DSC) measurements. In this work, we used the Temperature Modulated Differential Scanning Calorimetry (TMDSC) technique in order to obtain more information about the influence of the initial structural differences and gamma radiation on the evolution in structure and thermal properties of different polyethylenes. For this reason, low density polyethylene (LDPE), linear low density polyethylene (LLDPE) and high density polyethylene (HOPE) samples were exposed to gamma radiation, in air, to a wide range of absorbed doses (up to 2400 kGy). The separation of the total heat flow TMDSC signal into a reversing and non-reversing part enabled us to observe the low-temperature enthalpy relaxation (related to the existence of the rigid amorphous phase) and recrystallisation processes, as well as to follow their radiation-indu...ced evolution and/or that of melting in a more revealing manner compared to the case of the conventional DSC. Consequently, our results indicate that TMDSC could improve the understanding of radiation-induced effects in polymers. (C) 2011 Elsevier Ltd. All rights reserved.
Ključne reči:
Gamma irradiation / Polyethylenes / TMDSCIzvor:
Radiation Physics and Chemistry, 2012, 81, 9, 1374-1377Napomena:
- 12th Tihany Symposium on Radiation Chemistry, Aug 27-Sep 01, 2011, Zalakaros, Hungary
DOI: 10.1016/j.radphyschem.2011.11.054
ISSN: 0969-806X
WoS: 000306583200023
Scopus: 2-s2.0-84863330189
Kolekcije
Institucija/grupa
VinčaTY - JOUR AU - Galović, Slobodanka AU - Šećerov, Bojana Lj. AU - Trifunovic, S. AU - Miličević, Dejan S. AU - Suljovrujić, Edin H. PY - 2012 UR - https://vinar.vin.bg.ac.rs/handle/123456789/6967 AB - Various polyethylenes (PEs) and the effects of high-energy radiation on their structures were widely studied in the past using conventional Differential Scanning Calorimetry (DSC) measurements. In this work, we used the Temperature Modulated Differential Scanning Calorimetry (TMDSC) technique in order to obtain more information about the influence of the initial structural differences and gamma radiation on the evolution in structure and thermal properties of different polyethylenes. For this reason, low density polyethylene (LDPE), linear low density polyethylene (LLDPE) and high density polyethylene (HOPE) samples were exposed to gamma radiation, in air, to a wide range of absorbed doses (up to 2400 kGy). The separation of the total heat flow TMDSC signal into a reversing and non-reversing part enabled us to observe the low-temperature enthalpy relaxation (related to the existence of the rigid amorphous phase) and recrystallisation processes, as well as to follow their radiation-induced evolution and/or that of melting in a more revealing manner compared to the case of the conventional DSC. Consequently, our results indicate that TMDSC could improve the understanding of radiation-induced effects in polymers. (C) 2011 Elsevier Ltd. All rights reserved. T2 - Radiation Physics and Chemistry T1 - A study of gamma-irradiated polyethylenes by temperature modulated differential scanning calorimetry VL - 81 IS - 9 SP - 1374 EP - 1377 DO - 10.1016/j.radphyschem.2011.11.054 ER -
@article{ author = "Galović, Slobodanka and Šećerov, Bojana Lj. and Trifunovic, S. and Miličević, Dejan S. and Suljovrujić, Edin H.", year = "2012", abstract = "Various polyethylenes (PEs) and the effects of high-energy radiation on their structures were widely studied in the past using conventional Differential Scanning Calorimetry (DSC) measurements. In this work, we used the Temperature Modulated Differential Scanning Calorimetry (TMDSC) technique in order to obtain more information about the influence of the initial structural differences and gamma radiation on the evolution in structure and thermal properties of different polyethylenes. For this reason, low density polyethylene (LDPE), linear low density polyethylene (LLDPE) and high density polyethylene (HOPE) samples were exposed to gamma radiation, in air, to a wide range of absorbed doses (up to 2400 kGy). The separation of the total heat flow TMDSC signal into a reversing and non-reversing part enabled us to observe the low-temperature enthalpy relaxation (related to the existence of the rigid amorphous phase) and recrystallisation processes, as well as to follow their radiation-induced evolution and/or that of melting in a more revealing manner compared to the case of the conventional DSC. Consequently, our results indicate that TMDSC could improve the understanding of radiation-induced effects in polymers. (C) 2011 Elsevier Ltd. All rights reserved.", journal = "Radiation Physics and Chemistry", title = "A study of gamma-irradiated polyethylenes by temperature modulated differential scanning calorimetry", volume = "81", number = "9", pages = "1374-1377", doi = "10.1016/j.radphyschem.2011.11.054" }
Galović, S., Šećerov, B. Lj., Trifunovic, S., Miličević, D. S.,& Suljovrujić, E. H.. (2012). A study of gamma-irradiated polyethylenes by temperature modulated differential scanning calorimetry. in Radiation Physics and Chemistry, 81(9), 1374-1377. https://doi.org/10.1016/j.radphyschem.2011.11.054
Galović S, Šećerov BL, Trifunovic S, Miličević DS, Suljovrujić EH. A study of gamma-irradiated polyethylenes by temperature modulated differential scanning calorimetry. in Radiation Physics and Chemistry. 2012;81(9):1374-1377. doi:10.1016/j.radphyschem.2011.11.054 .
Galović, Slobodanka, Šećerov, Bojana Lj., Trifunovic, S., Miličević, Dejan S., Suljovrujić, Edin H., "A study of gamma-irradiated polyethylenes by temperature modulated differential scanning calorimetry" in Radiation Physics and Chemistry, 81, no. 9 (2012):1374-1377, https://doi.org/10.1016/j.radphyschem.2011.11.054 . .