title: Synthesis and characterizations of melamine-based epoxy resins.
abstract: 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.
authors.affiliation: Dipartimento di Ingegneria, Università di Napoli 'Parthenope', INSTM Research Group Napoli Parthenope, Centro Direzionale Napoli, Isola C4, Napoli 80143, Italy. laura.ricciotti@uniparthenope.it.
authors.forename: Laura
authors.initials: L
authors.lastname: Ricciotti
authors.forename: Giuseppina
authors.initials: G
authors.lastname: Roviello
authors.forename: Oreste
authors.initials: O
authors.lastname: Tarallo
authors.forename: Fabio
authors.initials: F
authors.lastname: Borbone
authors.forename: Claudio
authors.initials: C
authors.lastname: Ferone
authors.forename: Francesco
authors.initials: F
authors.lastname: Colangelo
authors.forename: Michelina
authors.initials: M
authors.lastname: Catauro
authors.forename: Raffaele
authors.initials: R
authors.lastname: Cioffi
mesh_terms: D004853:Epoxy Resins / Q000138:chemical synthesis* / Q000737:chemistry; D014227:Triazines / Q000737:chemistry*
chemical_list: D004853:Epoxy Resins; D014227:Triazines; C011907:melamine