Mössbauer studies of ferric chloride containing ethyl methacrylate‐ n ‐butyl methacrylate copolymer | Zendy

Kapur G. S. | Zendy; Brar A. S. | Zendy

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Mössbauer studies of ferric chloride containing ethyl methacrylate‐ n ‐butyl methacrylate copolymer

Author(s) -

Kapur G. S.,

Brar A. S.

Publication year - 1990

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.1990.070410909

Subject(s) - copolymer , methacrylate , ferric , polymer chemistry , thermal stability , anhydrous , chloride , mössbauer spectroscopy , methyl methacrylate , polymerization , materials science , nuclear chemistry , chemistry , inorganic chemistry , organic chemistry , polymer , crystallography

Ethyl methacrylate(EMA)‐ n ‐butyl methacrylate ( n BuMA) copolymer containing anhydrous ferric chloride was prepared by free radical polymerization at 70°C. TGA studies show that the addition of ferric chloride increases the thermal stability of the copolymer. Mössbauer studies of the copolymers showed the presence of Fe 3+ species only. Mössbauer studies of the copolymer heated at 150°C, 250°C, and 500°C for 1 h showed that during the thermal degradation, Fe 3+ species are reduced to Fe 2+ and then finally α‐Fe 2 O 3 is formed. The mechanism of thermal degradation has been proposed on the basis of IR, TGA, and Mössbauer studies.

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