Journal
EUROPEAN POLYMER JOURNAL
Volume 45, Issue 9, Pages 2487-2493Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.eurpolymj.2009.06.022
Keywords
Photochemical processing; Dynamic mechanical analysis; Thermogravimetric analysis; Epoxy nanocomposite; Zirconium phosphate
Categories
Funding
- MIUR
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Gels of exfoliated alpha-zirconium phosphate in 3,4-epoxycyclohexylmethyl-3',4'-epoxycyclohexane carboxylate (hereafter BCDE) were polymerised by a UV-induced process and the resulting nanocomposites were characterised by TEM, X-ray diffraction thermogravimetric, analysis and dynamic-mechanical thermal analysis. Real-time FT-IR spectroscopy was used to investigate the photopolymerisation kinetics. The polymerisation rate of the gels is faster than that of neat BCDE, especially when the filler is functionalised with aminoalcohols (HO(CH2)(n)NH2, with n = 3, 4, 5). The composites exhibit lower T-g values in comparison with neat polymerised BCDE. Because of the barrier effect towards oxygen diffusion due to the high aspect ratio of the filler particles, all composites also exhibit enhanced thermal stability. (C) 2009 Elsevier Ltd. All rights reserved.
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