Three different samples of ultra high molecular weight polyethylene have been irradiated with a high energy source (electron beam), and radicals have been generated. Different radical species have been assigned on the basis of their electron paramagnetic resonance spectra. Electron paramagnetic resonance data have been used also to evaluate the amount of each kind of radical that has been generated on different starting materials. The structure of the polymer (number of double bonds or crystallinity) is strictly connected to the response of the sample itself to the irradiation. A rationalization between these different parameters has been performed in order to evaluate the stability of polymer samples toward high energy irradiation processes.

EPR study of the relationship between ultra high molecular weight polyethylene structure and radicals formed during irradiation with high energy sources

BRUNELLA, VALENTINA GIOVANNA;PAGANINI, Maria Cristina
2015-01-01

Abstract

Three different samples of ultra high molecular weight polyethylene have been irradiated with a high energy source (electron beam), and radicals have been generated. Different radical species have been assigned on the basis of their electron paramagnetic resonance spectra. Electron paramagnetic resonance data have been used also to evaluate the amount of each kind of radical that has been generated on different starting materials. The structure of the polymer (number of double bonds or crystallinity) is strictly connected to the response of the sample itself to the irradiation. A rationalization between these different parameters has been performed in order to evaluate the stability of polymer samples toward high energy irradiation processes.
2015
53
3
194
199
http://www.interscience.wiley.com/jpages/0749-1581/
Crystallinity; Defects; Double bonds; EPR; Irradiation; Chemistry (all); Materials Science (all)
Brunella, Valentina; Paganini, Maria Cristina
File in questo prodotto:
File Dimensione Formato  
MRC_2015_OA_4aperto.pdf

Accesso aperto

Tipo di file: PREPRINT (PRIMA BOZZA)
Dimensione 513.79 kB
Formato Adobe PDF
513.79 kB Adobe PDF Visualizza/Apri
Brunella_et_al-2015-Magnetic_Resonance_in_Chemistry.pdf

Accesso riservato

Tipo di file: PDF EDITORIALE
Dimensione 673.31 kB
Formato Adobe PDF
673.31 kB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/1574726
Citazioni
  • ???jsp.display-item.citation.pmc??? 0
  • Scopus 1
  • ???jsp.display-item.citation.isi??? 1
social impact