INVESTIGADORES
ARANGUREN Mirta Ines
artículos
Título:
Mechanical Properties Of Linseed Oil Monoglyceride Maleate/Styrene Copolymers
Autor/es:
MOSIEWICKI, MIRNA; ARANGUREN, MIRTA I.; BORRAJO, JULIO
Revista:
JOURNAL OF APPLIED POLYMER SCIENCE
Editorial:
JOHN WILEY & SONS INC
Referencias:
Año: 2005 vol. 97 p. 825 - 836
ISSN:
0021-8995
Resumen:
ABSTRACT: In this study, rigid thermoset polymers were prepared from radical copolymerization of linseed oil monoglyceride maleates with styrene (St). First, linseed oil monoglycerides (LOMGs) were obtained from the reaction of linseed oil with glycerol at 220?240°C. Then, LOMGs were reacted with maleic anhydride at 80°C to produce the LOMG maleate half esters. The reactions were followed by FTIR spectroscopy and gel permeation chromatography (GPC), and the final resin was characterized by 1H-NMR spectroscopy. Finally, radical copolymerization of the LOMG maleates with 20, 40, 60, and 80% by weight of St was performed to produce rigid, thermoset polymers. The thermomechanical properties and fracture behavior of the cured copolymers, as a function of the percentage of St, were measured and analyzed. The copolymer with 40% by weight of St was the material with better mechanical and fracture behavior. © 2005 Wiley Periodicals, Inc. J Appl Polym Sci 96: 000?000, 2005 Key words: linseed oil; linseed oil monoglyceride; monoglyceride maleates; thermal properties; mechanical properties