g-Radiation Induced Functional Modification of Silica and Radiation Vulcanization of SBR-Silica Composites

Dondi, Daniele; Buttafava, Armando; Palamini, Claudia; Pepori, Fabio; Lostritto, A.; Giannini, L.; Nahmias, M.; Conzatti, L.; Faucitano, Antonio

doi:10.1002/masy.201150312

The g-ray induced ‘‘grafting’’ of polybutadiene olygomers onto precipitated silica and the radiation induced crosslinking of the blends prepared with the modified silica in SBR matrices have been investigated in the dose range up to 290 kGy. Enhanced mechanical properties have been detected for the SBR blends containing the modified silica after g-ray induced crosslinking. The comparison with the analogue mixtures containing pristine silica, supported by EPR measurements, suggests that the PB coating is effective in enhancing the mechanism of formation of filler-rubber chemical links.

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Titolo:	g-Radiation Induced Functional Modification of Silica and Radiation Vulcanization of SBR-Silica Composites
Autori:	DONDI, DANIELE BUTTAFAVA, ARMANDO PALAMINI, CLAUDIA PEPORI, FABIO A. Lostritto L. Giannini M. Nahmias L. Conzatti FAUCITANO, ANTONIO mostra contributor esterni nascondi contributor esterni
Data di pubblicazione:	2011
Rivista:	MACROMOLECULAR SYMPOSIA
Abstract:	The g-ray induced ‘‘grafting’’ of polybutadiene olygomers onto precipitated silica and the radiation induced crosslinking of the blends prepared with the modified silica in SBR matrices have been investigated in the dose range up to 290 kGy. Enhanced mechanical properties have been detected for the SBR blends containing the modified silica after g-ray induced crosslinking. The comparison with the analogue mixtures containing pristine silica, supported by EPR measurements, suggests that the PB coating is effective in enhancing the mechanism of formation of filler-rubber chemical links.
Handle:	http://hdl.handle.net/11571/261702
Appare nelle tipologie:	1.1 Articolo in rivista

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