Polyethylene crosslinked in different media: structural changes versus dielectric behaviour
Abstract
Changes in the structure and dielectric properties of low-density polyethylene were created by gamma irradiation in air, deionised water and nitrogen. Role of irradiation media on dielectric and charge trapping behaviour was studied through dielectric loss and thermally stimulated discharge current measurements. Changes in magnitude, position and activation energy of all dielectric relaxations (gamma, beta and alpha) were found to be dependent on crosslinking and oxidative degradation, two competitive processes which can be tuned by radiation dose and media. Largest changes in the position and activation energy were found for the beta relaxation due to its cooperative nature.
Keywords:
XPE / Gamma radiation / Dielectric relaxations / TSDC study / Oxidation / CrosslinkingSource:
Polymer Bulletin, 2015, 72, 2, 371-385Funding / projects:
- Chemical and structural designing of nanomaterials for application in medicine and tissue engineering (RS-MESTD-Basic Research (BR or ON)-172026)
DOI: 10.1007/s00289-014-1279-y
ISSN: 0170-0839; 1436-2449
WoS: 000348982400014
Scopus: 2-s2.0-84925463151
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Institution/Community
VinčaTY - JOUR AU - Stamboliev, Georgi AU - Miličević, Dejan S. AU - Mićić, Maja M. AU - Suljovrujić, Edin H. PY - 2015 UR - https://vinar.vin.bg.ac.rs/handle/123456789/388 AB - Changes in the structure and dielectric properties of low-density polyethylene were created by gamma irradiation in air, deionised water and nitrogen. Role of irradiation media on dielectric and charge trapping behaviour was studied through dielectric loss and thermally stimulated discharge current measurements. Changes in magnitude, position and activation energy of all dielectric relaxations (gamma, beta and alpha) were found to be dependent on crosslinking and oxidative degradation, two competitive processes which can be tuned by radiation dose and media. Largest changes in the position and activation energy were found for the beta relaxation due to its cooperative nature. T2 - Polymer Bulletin T1 - Polyethylene crosslinked in different media: structural changes versus dielectric behaviour VL - 72 IS - 2 SP - 371 EP - 385 DO - 10.1007/s00289-014-1279-y ER -
@article{ author = "Stamboliev, Georgi and Miličević, Dejan S. and Mićić, Maja M. and Suljovrujić, Edin H.", year = "2015", abstract = "Changes in the structure and dielectric properties of low-density polyethylene were created by gamma irradiation in air, deionised water and nitrogen. Role of irradiation media on dielectric and charge trapping behaviour was studied through dielectric loss and thermally stimulated discharge current measurements. Changes in magnitude, position and activation energy of all dielectric relaxations (gamma, beta and alpha) were found to be dependent on crosslinking and oxidative degradation, two competitive processes which can be tuned by radiation dose and media. Largest changes in the position and activation energy were found for the beta relaxation due to its cooperative nature.", journal = "Polymer Bulletin", title = "Polyethylene crosslinked in different media: structural changes versus dielectric behaviour", volume = "72", number = "2", pages = "371-385", doi = "10.1007/s00289-014-1279-y" }
Stamboliev, G., Miličević, D. S., Mićić, M. M.,& Suljovrujić, E. H.. (2015). Polyethylene crosslinked in different media: structural changes versus dielectric behaviour. in Polymer Bulletin, 72(2), 371-385. https://doi.org/10.1007/s00289-014-1279-y
Stamboliev G, Miličević DS, Mićić MM, Suljovrujić EH. Polyethylene crosslinked in different media: structural changes versus dielectric behaviour. in Polymer Bulletin. 2015;72(2):371-385. doi:10.1007/s00289-014-1279-y .
Stamboliev, Georgi, Miličević, Dejan S., Mićić, Maja M., Suljovrujić, Edin H., "Polyethylene crosslinked in different media: structural changes versus dielectric behaviour" in Polymer Bulletin, 72, no. 2 (2015):371-385, https://doi.org/10.1007/s00289-014-1279-y . .