info:eu-repo/semantics/article
Ageing of thermosets based on tung oil/styrene/divinylbenzene
Fecha
2012-10-31Registro en:
Meiorin, Cintia; Mosiewicki, Mirna Alejandra; Aranguren, Mirta Ines; Ageing of thermosets based on tung oil/styrene/divinylbenzene; Elsevier; Polymer Testing; 32; 2; 31-10-2012; 249-255
0142-9418
Autor
Meiorin, Cintia
Mosiewicki, Mirna Alejandra
Aranguren, Mirta Ines
Resumen
New thermoset polymers prepared by cationic co-polymerization of tung oil with styrene and/or divinylbenzene were evaluated at different times after their preparation. The changes in the properties were correlated with the composition of the copolymers. The action of atmospheric oxygen on the fatty acid unsaturations produced chemical changes in these polymers, which affected the properties of the cured materials. These changes were analyzed by FTIR, dynamic mechanical properties and mechanical testing. An increase in the modulus with time for all the analyzed samples was observed, as well as a large effect on the glass transition temperature and, consequently, in the shape memory properties.