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Peroxide crosslinking of rigid poly(vinyl chloride)
Author(s) -
Gunewardena Anoma,
Gilbert Marianne
Publication year - 2008
Publication title -
journal of vinyl and additive technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.295
H-Index - 35
eISSN - 1548-0585
pISSN - 1083-5601
DOI - 10.1002/vnl.20158
Subject(s) - vinyl chloride , materials science , differential scanning calorimetry , ultimate tensile strength , peroxide , degree of unsaturation , fourier transform infrared spectroscopy , polymer chemistry , tetrahydrofuran , trimethylolpropane , stabilizer (aeronautics) , composite material , chemical engineering , organic chemistry , copolymer , chemistry , solvent , polymer , polyurethane , mechanical engineering , physics , engineering , thermodynamics
Peroxide crosslinking of unplasticized poly(vinyl chloride) with trimethylolpropane trimethacrylate was investigated. Formulations used in this work contained a nontoxic lead‐free stabilizer and showed good color and heat stability. The samples were examined by differential scanning calorimetry, and their tensile properties were measured at room temperature and at 130°C. Gel content or tetrahydrofuran‐insoluble material was measured as an indication of crosslinking. It was shown that premature crosslinking could be avoided during processing and that 190°C was the optimum processing temperature for maximum gel content. The residual unsaturation was monitored by using FTIR spectroscopy. J. VINYL ADDIT. TECHNOL., 2008. © 2008 Society of Plastics Engineers