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Int. J. Mol. Sci. 2013, 14(9), 18200-18214; doi:10.3390/ijms140918200

Synthesis and Characterizations of Melamine-Based Epoxy Resins

1,* , 1
1 Dipartimento di Ingegneria, Università di Napoli 'Parthenope', INSTM Research Group Napoli Parthenope, Centro Direzionale Napoli, Isola C4, Napoli 80143, Italy 2 Dipartimento di Scienze Chimiche, Università degli Studi di Napoli "Federico II", Complesso Universitario di Monte S. Angelo, via Cintia, Napoli 80126, Italy 3 Dipartimento di Ingegneria Industriale e dell'Informazione, Seconda Università di Napoli, via Roma 29, Aversa 81031, Italy
* Author to whom correspondence should be addressed.
Received: 8 July 2013 / Revised: 2 August 2013 / Accepted: 20 August 2013 / Published: 5 September 2013
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A new, easy and cost-effective synthetic procedure for the preparation of thermosetting melamine-based epoxy resins is reported. By this innovative synthetic method, different kinds of resins can be obtained just by mixing the reagents in the presence of a catalyst without solvent and with mild curing conditions. Two types of resins were synthesized using melamine and a glycidyl derivative (resins I) or by adding a silane derivative (resin II). The resins were characterized by means of chemical-physical and thermal techniques. Experimental results show that all the prepared resins have a good thermal stability, but differ for their mechanical properties: resin I exhibits remarkable stiffness with a storage modulus value up to 830 MPa at room temperature, while lower storage moduli were found for resin II, indicating that the presence of silane groups could enhance the flexibility of these materials. The resins show a pot life higher than 30 min, which makes these resins good candidates for practical applications. The functionalization with silane terminations can be exploited in the formulation of hybrid organic-inorganic composite materials.
Keywords: epoxy resin; melamine; glycidyl derivative; IR; DSC; DMA; glass transition; crosslinking reaction; synthesis epoxy resin; melamine; glycidyl derivative; IR; DSC; DMA; glass transition; crosslinking reaction; synthesis
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Ricciotti, L.; Roviello, G.; Tarallo, O.; Borbone, F.; Ferone, C.; Colangelo, F.; Catauro, M.; Cioffi, R. Synthesis and Characterizations of Melamine-Based Epoxy Resins. Int. J. Mol. Sci. 2013, 14, 18200-18214.

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