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Peroxide crosslinking of rigid poly(vinyl chloride)
Author(s) -
Thomas N. L.,
Zheng X.
Publication year - 2006
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.25499
Subject(s) - materials science , vinyl chloride , glass transition , peroxide , polymer chemistry , viscoelasticity , ultimate tensile strength , trimethylolpropane , polyvinyl chloride , composite material , polymer , chemistry , copolymer , organic chemistry , polyurethane
Abstract The optimum conditions for crosslinking rigid poly(vinyl chloride) with trimethylolpropane trimethacrylate (TMPTMA) and peroxide have been examined. The extent of crosslinking was measured by determining gel content by Soxhlet extraction in tetrahydrofuran. Mechanical properties were measured at 130°C and dynamic viscoelastic measurements were carried out to detect changes in the glass transition temperature ( T g ). It was found that 15 phr of TMPTMA and 0.3 phr of peroxide were optimum concentrations for maximizing the extent of crosslinking, tensile strength, and T g . The lower molding temperature of 170°C was preferred to minimize thermal degradation. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 103: 2904–2909, 2007