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Type: Artigo de periódico
Title: Unsaturated polyester resins: influence of the styrene concentration on the miscibility and mechanical properties
Author: Sanchez, EMS
Zavaglia, CAC
Felisberti, MI
Abstract: Styrene is frequently used as comonomer for unsaturated polyester (UP) resins. Variations in the styrene content in the polyester affect the resulting properties. Dynamic mechanical tests show the phase separation in the cured resin with an increase of styrene concentration. The dependence of the glass transition temperature of the UP resin on the styrene content is complex and reflects a balance of elastic forces of the network and the immiscibility of polystyrene and UP. The thermal stability and the mechanical properties are governed by the phase behaviour of the mixture and therefore can be controlled by the styrene content. (C) 1999 Elsevier Science Ltd. All rights reserved.
Subject: unsaturated polyester
phase separation
Country: Inglaterra
Editor: Elsevier Sci Ltd
Rights: fechado
Identifier DOI: 10.1016/S0032-3861(99)00184-6
Date Issue: 2000
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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