Antioxidant action in irradiated polypropylene studied by ultraviolet spectroscopy
Апстракт
Ultraviolet spectrum of 0.2 mm thick film of polypropylene containing 0.5% ORGANOX 1010 showed that in the sample prepared by slow cooling about 15% of the antioxidant reacted during the preparation process. The difference in turbidity between the samples obtained in the slow and the fast cooling process is attributed to the degree of crystallinity, which is in agreement with the DSC data. Very pronounced effects of the oxygen concentration and the degree of crystallinity on antioxidant uptake in irradiated polypropylene films were observed and discussed. It was also shown that a Febetron 707 pulsed electron accelerator is capable of producing both the single pulse dose (50 kGy) and the dose rate (2.5 TGy/s) large enough to enable a comparison of dose rate effects and LET effects in the study of the antioxidant reactions in polypropylene. (C) 1999 Published by Elsevier Science B.V. All rights reserved.
Кључне речи:
antioxidant / polypropylene / morphology / ultraviolet spectroscopy / ionizing radiation / dose rate effectИзвор:
Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, 1999, 151, 1-4, 462-466Напомена:
- 3rd International Symposium on Ionizing Radiation and Polymers (IRaP 98), Sep 19-24, 1998, Weinbohla, Germany
DOI: 10.1016/S0168-583X(99)00097-X
ISSN: 0168-583X
WoS: 000080604100074
Scopus: 2-s2.0-0033515909
Колекције
Институција/група
VinčaTY - JOUR AU - Milosavljević, B.H. AU - Novaković, L PY - 1999 UR - https://vinar.vin.bg.ac.rs/handle/123456789/6269 AB - Ultraviolet spectrum of 0.2 mm thick film of polypropylene containing 0.5% ORGANOX 1010 showed that in the sample prepared by slow cooling about 15% of the antioxidant reacted during the preparation process. The difference in turbidity between the samples obtained in the slow and the fast cooling process is attributed to the degree of crystallinity, which is in agreement with the DSC data. Very pronounced effects of the oxygen concentration and the degree of crystallinity on antioxidant uptake in irradiated polypropylene films were observed and discussed. It was also shown that a Febetron 707 pulsed electron accelerator is capable of producing both the single pulse dose (50 kGy) and the dose rate (2.5 TGy/s) large enough to enable a comparison of dose rate effects and LET effects in the study of the antioxidant reactions in polypropylene. (C) 1999 Published by Elsevier Science B.V. All rights reserved. T2 - Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms T1 - Antioxidant action in irradiated polypropylene studied by ultraviolet spectroscopy VL - 151 IS - 1-4 SP - 462 EP - 466 DO - 10.1016/S0168-583X(99)00097-X ER -
@article{ author = "Milosavljević, B.H. and Novaković, L", year = "1999", abstract = "Ultraviolet spectrum of 0.2 mm thick film of polypropylene containing 0.5% ORGANOX 1010 showed that in the sample prepared by slow cooling about 15% of the antioxidant reacted during the preparation process. The difference in turbidity between the samples obtained in the slow and the fast cooling process is attributed to the degree of crystallinity, which is in agreement with the DSC data. Very pronounced effects of the oxygen concentration and the degree of crystallinity on antioxidant uptake in irradiated polypropylene films were observed and discussed. It was also shown that a Febetron 707 pulsed electron accelerator is capable of producing both the single pulse dose (50 kGy) and the dose rate (2.5 TGy/s) large enough to enable a comparison of dose rate effects and LET effects in the study of the antioxidant reactions in polypropylene. (C) 1999 Published by Elsevier Science B.V. All rights reserved.", journal = "Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms", title = "Antioxidant action in irradiated polypropylene studied by ultraviolet spectroscopy", volume = "151", number = "1-4", pages = "462-466", doi = "10.1016/S0168-583X(99)00097-X" }
Milosavljević, B.H.,& Novaković, L.. (1999). Antioxidant action in irradiated polypropylene studied by ultraviolet spectroscopy. in Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, 151(1-4), 462-466. https://doi.org/10.1016/S0168-583X(99)00097-X
Milosavljević B, Novaković L. Antioxidant action in irradiated polypropylene studied by ultraviolet spectroscopy. in Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms. 1999;151(1-4):462-466. doi:10.1016/S0168-583X(99)00097-X .
Milosavljević, B.H., Novaković, L, "Antioxidant action in irradiated polypropylene studied by ultraviolet spectroscopy" in Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, 151, no. 1-4 (1999):462-466, https://doi.org/10.1016/S0168-583X(99)00097-X . .