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Synthesis and characterization of epoxidized styrene–butadiene rubber/silicon dioxide hybrid materials
Author(s) -
de Luca Maria Augusta,
Machado Taís Espíndola,
Notti Renan Beretta,
Jacobi Marly Maldaner
Publication year - 2004
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.13669
Subject(s) - thermogravimetric analysis , differential scanning calorimetry , materials science , styrene butadiene , natural rubber , styrene , scanning electron microscope , composite material , swelling , chemical engineering , polymer chemistry , copolymer , polymer , physics , engineering , thermodynamics
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