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Shape Memory Epoxy-Cyanate Ester System; Effect of Switching Segments

The role of switching segments on the shape memory property of epoxy-cyanate ester system was investigated. The shape memory thermoset polymer was designed by co-reacting cyanate ester and epoxy with phenol-telechelic of different switching segments constituted by poly(tetramethyleneoxide) (PTMO), p...

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Detalles Bibliográficos
Autor Principal: R. Biju and C.P Reghunadhan Nair
Formato: Journal Article
Publicado: RESEARCH ESSENCE 2013
Subjects:
Acceso en liña:http://10.26.1.76/ks/005916.pdf
Descripción
Summary:The role of switching segments on the shape memory property of epoxy-cyanate ester system was investigated. The shape memory thermoset polymer was designed by co-reacting cyanate ester and epoxy with phenol-telechelic of different switching segments constituted by poly(tetramethyleneoxide) (PTMO), poly(ε-caprolactone) (PCL) and poly(propylene) (PPG). Phenol groups help the shape memory component get integrated into the network matrix through coreaction with both cyanate and epoxy groups. All polymer possessed good mechanical properties and thermal stability. The PTMO system is a good as the PCL system in terms of shape memory properties. Vis-a-vis to the alcohol terminated shape memory component, phenol terminal groups help the PTMO segments get integrated into the matrix. The resin is suited to process good elastic memory composites as cyanate esters normally promote excellent composite formation.
Descrición Física:p.19-34 VOL.1, NO.1, JUNE-DECEMBER 2013