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Type: Artigo de periódico
Title: Photochemical aging of in situ polymerized blends of polystyrene and poly [acrylonitrile-g-(ethylene-co-propylene-co-diene)-g-styrene] (AES)
Author: Lourenco, E
Felisberti, MI
Abstract: The influence of photochemical aging of in situ polymerized PS/AES blends on their mechanical properties has been studied. The PS/AES blends were subjected to photochemical aging for 168 h and 720 It. Tensile properties and Izod impact resistance of aged and non-aged samples were evaluated. The mechanical properties of the PS/AES blends are influenced by the polymerization temperature and blend composition and represent a balance between the toughness of EPDM and the stiffness of SAN in the PS matrix. Even though the impact resistance and strain at break of HIPS are higher than those of the PS/AES blends, after the aging period all PS/AES blends showed higher strain at break than HIPS. PS/AES blends present higher photochemical. stability than HIPS. (c) 2006 Elsevier Ltd. All rights reserved.
Subject: in situ polymerized PS/AES blends
photochemical aging
mechanical properties
impact resistance
Country: Inglaterra
Editor: Elsevier Sci Ltd
Citation: Polymer Degradation And Stability. Elsevier Sci Ltd, v. 91, n. 12, n. 2968, n. 2978, 2006.
Rights: fechado
Identifier DOI: 10.1016/j.polymdegradstab.2006.08.013
Date Issue: 2006
Appears in Collections:Unicamp - Artigos e Outros Documentos

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