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Reactivity of poly(vinyl chloride) containing N‐methyl‐N‐carboxymethyl dithiocarbamate toward metal ions in heterogeneous system and effect of γ‐irradiation on the reactivity
Author(s) -
Nakagawa Tsutomu,
Taniguchi Junichi,
Fujiwara Yukihiko
Publication year - 1976
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.1976.070200314
Subject(s) - dithiocarbamate , reactivity (psychology) , chemistry , vinyl chloride , metal ions in aqueous solution , aqueous solution , chelation , radiolysis , metal , chloride , polymer chemistry , inorganic chemistry , irradiation , nuclear chemistry , polymer , organic chemistry , copolymer , medicine , physics , alternative medicine , pathology , nuclear physics
The reaction of poly(vinyl chloride) containing N‐methyl‐N‐carboxymethyl dithiocarbamate (PSDC) with metal ions in a heterogeneous system and the effects of γ‐irradiation on the reactivity were studied. Slurried PSDC has an affinity for a number of metal ions in aqueous solutions. On the basis of analyses for nitrogen and sulfur and on infrared spectra, a possible chelating structure for PSDC was deduced. The gaseous products evolved during the gamma radiolysis of PSDC under vacuum were measured. Although the dithiocarbamate group bonded to the main chain gave some protection against the dehydrochlorination of poly(vinyl chloride) component, a small amount of the carboxymethyl group was decomposed. It was found that with γ‐irradiation doses up to 30 Mrad, only about 1 mole‐% out of 17.6 mole‐% of N‐methyl‐N‐carboxymethyl dithiocarbamate in the polymer was decomposed. It was shown that the reactivity of the irradiated PSDC in water toward metal ions was almost the same as that before irradiation.