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Radiation‐induced sulfoxidation and sulfochlorination of powdery polyethylene produced by radiation process
Author(s) -
Konishi Kunio,
Yamaguchi Kouichi,
Takehisa Masaaki
Publication year - 1971
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.1971.070150201
Subject(s) - crystallinity , polyethylene , polymer , polymerization , polymer chemistry , ethylene , sulfuric acid , radiation , materials science , irradiation , chemistry , photochemistry , organic chemistry , composite material , optics , catalysis , nuclear physics , physics
Abstract Gamma radiation‐induced sulfoxidation and sulfochlorination of the high specific surface area powdery polyethylene which was produced by radiation‐induced polymerization of ethylene at room temperature were studied and were compared with sulfonation by fuming sulfuric acid. In these reactions the effect of surface area on the chemical reactivity was observed to a certain degree. In gamma radiation‐induced sulfochlorination, it was elucidated that as the reaction proceeds, the ratio of SO 2 Cl to Cl introduced into the polymer decreases, which can be explained by the difference between the diffusibilities of SO 2 and Cl 2 molecules through sulfochlorinated and/or chlorinated polyethylene. Crystallinity, melting temperature, and density of the sulfochlorinated polymers were measured and are discussed.