Archivio Istituzionale della RicercaPolymeric nanocomposites based on an epoxy cycloaliphatic resin and o-montmorillonite (Cloisite 30B_) modified by reaction with maleinized liquid polybutadienes were prepared through photopolymerization. The conditions for the o-montmorillonite modification were settled. After the reaction, a strong increase of the basal spacing of the nanoclays was evidenced through XRD analysis. The modified clays were dispersed in the epoxy resin (5 wt.%) and subjected to the UV-curing process. The kinetics of the photopolymerization process was evaluated by means of Real-Time FT-IR spectroscopy. The obtained nanocomposites were studied by means of XRD and TEM analyses; the formation of either intercalated or quasi-exfoliated structure was assessed. The thermal and mechanical properties of the cured films were evaluated and correlated to the morphology of the obtained nanocomposites.
Preparation and characterization of UV-cured epoxy nanocomposites based on o-montmorillonite modified with maleinized liquid polybutadienes / Malucelli, Giulio; Bongiovanni, Roberta Maria; Sangermano, Marco; Ronchetti, Silvia Maria; Priola, Aldo. - In: POLYMER. - ISSN 0032-3861. - 48/24:(2007), pp. 7000-7007. [10.1016/j.polymer.2007.10.008]
Preparation and characterization of UV-cured epoxy nanocomposites based on o-montmorillonite modified with maleinized liquid polybutadienes
MALUCELLI, Giulio;BONGIOVANNI, Roberta Maria;SANGERMANO, MARCO;RONCHETTI, Silvia Maria;PRIOLA, ALDO
2007
Abstract
Polymeric nanocomposites based on an epoxy cycloaliphatic resin and o-montmorillonite (Cloisite 30B_) modified by reaction with maleinized liquid polybutadienes were prepared through photopolymerization. The conditions for the o-montmorillonite modification were settled. After the reaction, a strong increase of the basal spacing of the nanoclays was evidenced through XRD analysis. The modified clays were dispersed in the epoxy resin (5 wt.%) and subjected to the UV-curing process. The kinetics of the photopolymerization process was evaluated by means of Real-Time FT-IR spectroscopy. The obtained nanocomposites were studied by means of XRD and TEM analyses; the formation of either intercalated or quasi-exfoliated structure was assessed. The thermal and mechanical properties of the cured films were evaluated and correlated to the morphology of the obtained nanocomposites.
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https://hdl.handle.net/11583/1643478
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