Reactive rubbers as toughening agents for thermoset polyester resins. Molecular analysis by FTIR and fracture behavior of the resulting blends

A reactive rubber obtained by isocyanation of hydroxyl‐terminated polybutadiene was used as toughening agent for an unsaturated polyester resin. Both the isocyanation and the successive reaction between the modified rubber and the polyester were investigated by Fourier‐transform infrared spectroscop...

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Bibliographic Details
Published in:Journal of polymer science. Part B, Polymer physics Polymer physics, 1993-05, Vol.31 (6), p.619-632
Main Authors: Martuscelli, E., Musto, P., Ragosta, G., Scarinzi, G., Bertotti, E.
Format: Article
Language:English
Subjects:
Applied sciences
as toughening agent for unsaturated polyester resin
Exact sciences and technology
IR study with reactive rubber toughening agent in
Mechanical properties
morphology of unsaturated polyester toughened with reactive rubber
Organic polymers
Physicochemistry of polymers
polyster
polyster, unsaturated, IR study with reactive rubber toughening agent in
Properties and characterization
reactive
rubber
rubber, reactive, as toughening agent for unsaturated polyester resin
unsaturated
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Summary:A reactive rubber obtained by isocyanation of hydroxyl‐terminated polybutadiene was used as toughening agent for an unsaturated polyester resin. Both the isocyanation and the successive reaction between the modified rubber and the polyester were investigated by Fourier‐transform infrared spectroscopy (FTIR). Fracture measurements at high and low strain rate were carried out on the cured materials to test their toughness. The failure mechanisms were established by morphological analysis of fractured surfaces, performed by scanning electron microscopy. © 1993 John Wiley & Sons, Inc.
ISSN:0887-6266
1099-0488
DOI:10.1002/polb.1993.090310601