INVESTIGADORES
CIOLINO Andres Eduardo
artículos
Título:
The role of unsaturations in the Gamma irradiation of crosslinkable polymers
Autor/es:
ANGEL JOSÉ SATTI; ANDRÉS E. CIOLINO; NOEMÍ A. ANDREUCETTI; ENRIQUE M. VALLÉS
Revista:
RADIATION PHYSICS AND CHEMISTRY (OXFORD)
Editorial:
PERGAMON-ELSEVIER SCIENCE LTD
Referencias:
Lugar: Amsterdam; Año: 2015 p. 119 - 126
ISSN:
0969-806X
Resumen:
Nowadays, the understanding of the interaction of ionizing radiations with polymeric materials is becoming increasingly important. It is well-known that many parameters regarding the synthesis of the polymers noticeably affect the irradiation process. In this work, an analysis of the effect of the type and the position of a given unsaturation in the molecular structure of crosslinkable polymers is performed. For such purpose, two solid semycristalline metallocenic ethylene 1-olefin copolymers (mEOC), and liquid poly(dimethylsiloxane) (PDMS) homo and copolymers containing vinyl groups were irradiated. The source of irradiation was 60Co, under vacuum at room temperature, in all the cases. The results obtained from the analysis indicated that the presence of terminal vinyl insaturations is an important advantage for the radioinduced crosslinking of these polymers, and also that this location of the double bond is the most efficient for crosslinking at significant lower doses of radiation.
