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Effect of tris(bathophenanthroline)iron(III) on the polymerization of styrene
Author(s) -
Goswami Aradhana,
Baruah Shashi D.,
Dass Narendra N.
Publication year - 1996
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/(sici)1097-4628(19961219)62:12<2155::aid-app18>3.0.co;2-4
Subject(s) - styrene , azobisisobutyronitrile , chemistry , dimethylformamide , perchlorate , polymer chemistry , polymerization , tris , reaction rate constant , equilibrium constant , inorganic chemistry , solvent , copolymer , organic chemistry , kinetics , polymer , ion , biochemistry , physics , quantum mechanics
The polymerization of styrene at 60°C initiated by 2,2′‐azobisisobutyronitrile (AIBN) was studied in N,N ‐dimethylformamide (DMF) in the presence of tris‐(bathophenanthroline)iron(III) complex, [Fe(bathophen) 3 ] 3+ . The complex was prepared in situ by mixing hexakis( N,N ‐dimethylformamide)iron(III) perchlorate with bathophen‐anthroline (systematic IUPAC nomenclature: 4,7‐diphenyl‐1,10‐phenanthroline) in the molar ratio of 1 : 3. The equilibrium constant for\documentclass{article}\pagestyle{empty}\begin{document}$$ [\rm {Fe}(\rm {DMF})_6 ]^{3 + } + 3\rm {bathophen} \rightleftharpoons [\rm {Fe}(\rm {bathophen})_3 ]^{3 + } + 6\rm {DMF} $$\end{document} was 3.12×10 3 L 3 mol −3 . The transfer constant for bathophenanthroline was found to be 0.38 ± 0.01 for the styrene/DMF system at 60°C. Mean velocity constant at 60°C for interaction of polystyryl radical with [Fe(bathophen) 3 ] 3+ was 3.73× 10 4 L mol −1 s −1 . © 1996 John Wiley & Sons, Inc.