Structural changes in highly crosslinked polyethylene irradiated in absence of oxygen
Apstrakt
The heat properties of gamma-ray crosslinked polyethylene are determined by differential scanning calorimetry (DSC). The changes in the supermolecular structure are evaluated and correlated to the heterogeneous distribution of crosslinks in polymer structure caused by the specific early excitation process. The nonlinear change in enthalpy of fusion, peak melting temperature, activation energy of ordering transition, number of defects, and maximal specific heat capacity with absorbed dose is explained in terms of separated crosslinking processes, fast on the lamellae surfaces and slow in the crystal core at double bond site that is evident for absorbed dose greater than 1000 kGy. (C) 2003 Elsevier Science Ltd. All rights reserved.
Ključne reči:
polyethylene / gamma-irradiation / crosslinking / supermolecular structureIzvor:
Radiation Physics and Chemistry, 2003, 67, 3-4, 425-429Napomena:
- 10th Tihany Symposium on Radiation Chemistry, Aug 31-Sep 05, 2002, Sopron, Hungary
DOI: 10.1016/S0969-806X(03)00079-3
ISSN: 0969-806X
WoS: 000183749200044
Scopus: 2-s2.0-0038696003
Kolekcije
Institucija/grupa
VinčaTY - JOUR AU - Marinović-Cincović, Milena AU - Kačarević-Popović, Zorica M. AU - Babić, Dragan PY - 2003 UR - https://vinar.vin.bg.ac.rs/handle/123456789/6368 AB - The heat properties of gamma-ray crosslinked polyethylene are determined by differential scanning calorimetry (DSC). The changes in the supermolecular structure are evaluated and correlated to the heterogeneous distribution of crosslinks in polymer structure caused by the specific early excitation process. The nonlinear change in enthalpy of fusion, peak melting temperature, activation energy of ordering transition, number of defects, and maximal specific heat capacity with absorbed dose is explained in terms of separated crosslinking processes, fast on the lamellae surfaces and slow in the crystal core at double bond site that is evident for absorbed dose greater than 1000 kGy. (C) 2003 Elsevier Science Ltd. All rights reserved. T2 - Radiation Physics and Chemistry T1 - Structural changes in highly crosslinked polyethylene irradiated in absence of oxygen VL - 67 IS - 3-4 SP - 425 EP - 429 DO - 10.1016/S0969-806X(03)00079-3 ER -
@article{ author = "Marinović-Cincović, Milena and Kačarević-Popović, Zorica M. and Babić, Dragan", year = "2003", abstract = "The heat properties of gamma-ray crosslinked polyethylene are determined by differential scanning calorimetry (DSC). The changes in the supermolecular structure are evaluated and correlated to the heterogeneous distribution of crosslinks in polymer structure caused by the specific early excitation process. The nonlinear change in enthalpy of fusion, peak melting temperature, activation energy of ordering transition, number of defects, and maximal specific heat capacity with absorbed dose is explained in terms of separated crosslinking processes, fast on the lamellae surfaces and slow in the crystal core at double bond site that is evident for absorbed dose greater than 1000 kGy. (C) 2003 Elsevier Science Ltd. All rights reserved.", journal = "Radiation Physics and Chemistry", title = "Structural changes in highly crosslinked polyethylene irradiated in absence of oxygen", volume = "67", number = "3-4", pages = "425-429", doi = "10.1016/S0969-806X(03)00079-3" }
Marinović-Cincović, M., Kačarević-Popović, Z. M.,& Babić, D.. (2003). Structural changes in highly crosslinked polyethylene irradiated in absence of oxygen. in Radiation Physics and Chemistry, 67(3-4), 425-429. https://doi.org/10.1016/S0969-806X(03)00079-3
Marinović-Cincović M, Kačarević-Popović ZM, Babić D. Structural changes in highly crosslinked polyethylene irradiated in absence of oxygen. in Radiation Physics and Chemistry. 2003;67(3-4):425-429. doi:10.1016/S0969-806X(03)00079-3 .
Marinović-Cincović, Milena, Kačarević-Popović, Zorica M., Babić, Dragan, "Structural changes in highly crosslinked polyethylene irradiated in absence of oxygen" in Radiation Physics and Chemistry, 67, no. 3-4 (2003):425-429, https://doi.org/10.1016/S0969-806X(03)00079-3 . .