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Thermal characteristics of iron(III), cobalt(II), and copper(II) complexes of dipyridylamine anchored on polystyrene‐divinylbenzene copolymer
Author(s) -
Mukherjee Amit,
Biswas Mukul
Publication year - 1993
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.1993.070500901
Subject(s) - divinylbenzene , polystyrene , copolymer , polymer , thermal stability , polymer chemistry , cobalt , exothermic reaction , materials science , thermal decomposition , copper , glass transition , chemistry , inorganic chemistry , organic chemistry , styrene , composite material
Polystyrene‐divinylbenzene (PS‐DVB) (partially chloromethylated) has been modified by anchoring dipyridylamine (DPA) followed by subsequent complexation with Fe(III), Co(II), and Cu(II). Analytical and spectroscopic evidence has been presented to confirm the attachment of the metal‐dipyridyl complex on the PS‐DVB matrix. All the metal‐loaded polymers exhibit appreciable improvement in thermal stability relative to the base polymer, the initial decomposition temperature and stability order being PS‐DVB‐DPA‐Cu(315°C) > PS‐DVB‐DPA‐Fe(II) (310°C) > PS‐DVB‐DPA‐Co (300°C) > PS‐DVB‐DPA (280°C) = PS‐DVB.DTA studies reveal exothermic peaks between 300 and 380°C, 420 and 440°C, and 500 and 700°C, which are ascribable to the exothermic cleavage of the PS‐DVB‐DPA matrix. The glass transition temperatures of the modified polymers do not reveal any characteristic difference from the corresponding value for the base polymer. © 1993 John Wiley & Sons, Inc.