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Oxidative degradation of poly(ethylene sulfide)
Author(s) -
Adamek S.,
Mackillop D.,
Schnecko H.
Publication year - 1972
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.1972.070161006
Subject(s) - materials science , thermoplastic , sulfide , ethylene , polymer , degradation (telecommunications) , polymer chemistry , chemical engineering , solvent , crystallization , organic chemistry , chemistry , composite material , catalysis , telecommunications , computer science , engineering , metallurgy
Poly(ethylene sulfide) which is a strong, stiff, solvent‐resistant thermoplastic resin, upon preparation and molding, undergoes rapid degradation upon aging in air with significant loss in impact strength and other physical properties. This is attributed to surface crazing and shrinking caused by molecular breakdown and crystallization. Infrared spectral studies show the rapid formation of sulfoxide, sulfone, and carbonyl moities in the polymer and mass spectral analysis shows the principal gaseous degradation products to be acetaldehyde, carbon dioxide, sulfur dioxide, and water. The addition of antioxidants, blending with other resins, and polymer modification give only minor improvement in oxidation resistance. This poor oxidation resistance has prohibited the development of poly(ethylene sulfide) as a commercial thermoplastic.