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Photolytic degradation of some poly(alkylene polysulfides)
Author(s) -
Isaacs Lawrence G.,
Fox R. B.
Publication year - 1965
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.1965.070091025
Subject(s) - methylene , polymer , carbon disulfide , ethylene , degradation (telecommunications) , sulfide , polymer chemistry , hydrogen sulfide , chemistry , sulfur , materials science , photochemistry , organic chemistry , catalysis , computer science , telecommunications
Poly(methylene disulfide), poly(methylene tetrasulfide), poly(ethylene disulfide), and poly(ethylene tetrasulfide) have been subjected to ultraviolet radiation in vacuum at 50°C. Weight losses during photolysis include both low molecular weight compounds and readily condensable polymeric materials; the latter account for the greater proportion of the weight losses. Carbon monosulfide, isolated as its polymer, and hydrogen sulfide are major photolytic products. Carbon disulfide is a major product from the methylene but not from the ethylene polymers. The tetrasulfide polymers during irradiation from volatile products which on condensation give the original polymer. A mechanism of degradation compatible with these findings is suggested.