Artículo
Rheological analysis of irradiated crosslinkable and scissionable polymers used for medical devices under different radiation conditions
Satti, Angel Jose
; Ressia, Jorge Aníbal; Cerrada, M. L.; Andreucetti, Noemi Amalia; Valles, Enrique Marcelo
Fecha de publicación:
09/2017
Editorial:
Pergamon-Elsevier Science Ltd
Revista:
Radiation Physics and Chemistry (Oxford)
ISSN:
0969-806X
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
The effects on different synthetic polymers of distinct types of radiation, gamma rays and electron beam, under different atmospheres are followed by changes in their viscoelastic behavior. Taking into account the two main radioinduced reactions, crosslinking and scissioning of polymeric chains, liquid polydimethylsiloxane has been used as example of crosslinkable polymer and semi crystalline polypropylene as example of scissionable polymer. Propylene − 1-hexene copolymers have been also evaluated, and the effects of both reactions were clearly noticed. Accordingly, samples of those aforementioned polymers have been irradiated with 60Co gamma irradiation in air and under vacuum, and also with electron beam, at similar doses. Sinusoidal dynamic oscillation experiments showed a significant increase in branching and crosslinking reactions when specimens are irradiated under vacuum, while scissioning reactions were observed for the different polymers when irradiation takes place under air with either gamma irradiation or electron beam.
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Identificadores
Colecciones
Articulos(INQUISUR)
Articulos de INST.DE QUIMICA DEL SUR
Articulos de INST.DE QUIMICA DEL SUR
Articulos(PLAPIQUI)
Articulos de PLANTA PILOTO DE INGENIERIA QUIMICA (I)
Articulos de PLANTA PILOTO DE INGENIERIA QUIMICA (I)
Citación
Satti, Angel Jose; Ressia, Jorge Aníbal; Cerrada, M. L.; Andreucetti, Noemi Amalia; Valles, Enrique Marcelo; Rheological analysis of irradiated crosslinkable and scissionable polymers used for medical devices under different radiation conditions; Pergamon-Elsevier Science Ltd; Radiation Physics and Chemistry (Oxford); 144; 9-2017; 298-303
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