Lifetime of alkyl macroradicals in irradiated ultra-high molecular weight polyethylene
作者： V. Brunella , P. Bracco , I. Carpentieri , M.C. Paganini , M. Zanetti
DOI: 10.1016/J.POLYMDEGRADSTAB.2007.05.005
关键词: Irradiation 、 Alkyl 、 Polyethylene 、 Electron paramagnetic resonance 、 Chemistry 、 Analytical chemistry 、 Radical 、 Photochemistry 、 Fourier transform infrared spectroscopy 、 Polymer 、 Free-radical reaction
摘要: Abstract The interaction of UHMWPE with an electron beam in vacuum and the presence oxygen has been investigated. irradiated to various doses was examined Electron Paramagnetic Resonance (EPR) Fourier Transform infra-red (FTIR) spectroscopies. EPR used explore nature radicals produced upon irradiation follow their decay as a function time. Hydroperoxides formation distribution throughout samples were studied FTIR spectroscopy. A correlation between rate macroradicals that hydroperoxide proposed. Accordingly, lifetime secondary alkyl amorphous phase polymer found range approximately from 3 10 h.
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sci-hub.se 参考文章(21)
John Lomas., Jacques. Fossey, Guy Ourisson forewords by Alwyn Davies, Free radicals in organic chemistry ,(1995)
V. S. Ivanov, E. A. Koroleva, Radiation Chemistry of Polymers VSP ; 1992. ,(1992)
Steven M. Kurtz, The UHMWPE Handbook: Ultra-High Molecular Weight Polyethylene in Total Joint Replacement ,(2004)
George G. Odian, Principles of polymerization ,(1981)
L. Costa, M.P. Luda, L. Trossarelli, E.M. Brach del Prever, M. Crova, P. Gallinaro, Oxidation in orthopaedic UHMWPE sterilized by gamma-radiation and ethylene oxide. Biomaterials. ,vol. 19, pp. 659- 668 ,(1998) , 10.1016/S0142-9612(97)00160-9
J. Durant, M.S. Jahan, EPR power saturation techniques and spectral differentiation are used to isolate and simulate radical species in UHMWPE Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms. ,vol. 236, pp. 160- 165 ,(2005) , 10.1016/J.NIMB.2005.04.011
Y. Ikada, K. Nakamura, S. Ogata, K. Makino, K. Tajima, N. Endoh, T. Hayashi, S. Fujita, A. Fujisawa, S. Masuda, H. Oonishi, Characterization of ultrahigh molecular weight polyethylene irradiated with γ‐rays and electron beams to high doses Journal of Polymer Science Part A. ,vol. 37, pp. 159- 168 ,(1999) , 10.1002/(SICI)1099-0518(19990115)37:2<159::AID-POLA6>3.0.CO;2-G
P. Bracco, V. Brunella, M.P. Luda, M. Zanetti, L. Costa, Radiation-induced crosslinking of UHMWPE in the presence of co-agents: chemical and mechanical characterisation Polymer. ,vol. 46, pp. 10648- 10657 ,(2005) , 10.1016/J.POLYMER.2005.08.095
M.S. Jahan, K.S. McKinny, Radiation-sterilization and subsequent oxidation of medical grade polyethylene: an ESR study Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms. ,vol. 151, pp. 207- 212 ,(1999) , 10.1016/S0168-583X(99)00083-X