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The effect of PVAc on the efficiency of thermal reactions in PS/PVAc blends in relation to the atmosphere
Author(s) -
Kamińska A.,
Kaczmarek H.
Publication year - 1992
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/pat.1992.220030207
Subject(s) - materials science , polyvinyl acetate , polystyrene , stabilizer (aeronautics) , thermal stability , polymer , thermal decomposition , thermal , atmosphere (unit) , degradation (telecommunications) , chemical engineering , polymer chemistry , decomposition , composite material , organic chemistry , chemistry , thermodynamics , mechanical engineering , telecommunications , physics , computer science , engineering
The thermal stability of polystyrene (PS) blends with polyvinyl acetate (PV Ac) has been investigated. It was found that PV Ac acts as a sensitizer of the thermal degradation of these blends when the process takes place in a nitrogen atmosphere. In air PV Ac acts as a stabilizer, and the temperature of the decomposition of these blends is higher than that of pure PS. This stabilization is caused by PV Ac favoring an oxidation reaction without breaking the polymer chains.