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Synthesis and characterization of epoxidized styrene–butadiene rubber/silicon dioxide hybrid materials

✍ Scribed by Maria Augusta de Luca; Taís Espíndola Machado; Renan Beretta Notti; Marly Maldaner Jacobi

Publisher
John Wiley and Sons
Year
2004
Tongue
English
Weight
203 KB
Volume
92
Category
Article
ISSN
0021-8995

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✦ Synopsis

Abstract

Hybrid materials were synthesized from epoxidized (68, 43, or 14%) styrene–butadiene rubber (SBR) and the hydrolysis product of tetraethoxysilane (TEOS) in situ under ultrasonic irradiation. The products were characterized with thermal analysis (differential scanning calorimetry and thermogravimetric analysis), stress–strain tests, scanning electron microscopy (including energy‐dispersive spectrometry), and swelling in tetrahydrofuran and water. The most transparent were those prepared from SBR with the highest degree of epoxidation, whereas those obtained from less epoxidized SBR and with larger amounts of TEOS showed distinct phases that could be considered two hybrid phases (one rich in TEOS and another rich in SBR). © 2004 Wiley Periodicals, Inc. J Appl Polym Sci 92: 798–803, 2004

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