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Polymerization of allylthiourea by constant current electrolysis
Author(s) -
Özkan Hülya,
Usanmaz Ali,
Önal M. Ahmet
Publication year - 1994
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/pi.1994.210350312
Subject(s) - acetonitrile , polymerization , electrolysis , monomer , electrolyte , limiting current , supporting electrolyte , materials science , solvent , reaction rate constant , current (fluid) , polymer , fourier transform infrared spectroscopy , chemistry , polymer chemistry , analytical chemistry (journal) , inorganic chemistry , electrode , electrochemistry , chemical engineering , organic chemistry , kinetics , thermodynamics , physics , quantum mechanics , engineering
Abstract Allylthiourea was polymerized by constant current electroinitiation in acetonitrile using tetrabutylammonium fluoroborate as supporting electrolyte. The polymer obtained was insoluble in common organic solvents. FTIR studies showed that polymerization propagates by addition through the C=C double bond. The cyclic voltammogram of the monomer gave two irreversible oxidation peaks at + 1.3V and + 2.4V versus Ag°/Ag + reference electrode at 25°C. Polymerization at room temperature gave a limiting conversion of about 10% for 2mA current and 30% for 5mA current, in acetonitrile. Higher initial rates were obtained when dichloroethane was used as solvent.