Interaction of polystyryl radical with Cu(DMF) 2 Br 2 | Zendy

Baruah Shashi D. | Zendy

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Interaction of polystyryl radical with Cu(DMF) 2 Br 2

Author(s) -

Baruah Shashi D.

Publication year - 1992

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.1992.070460810

Subject(s) - chemistry , azobisisobutyronitrile , reaction rate constant , styrene , perchlorate , dimethylformamide , copper , polymerization , polymer chemistry , kinetics , solvent , copolymer , organic chemistry , polymer , ion , physics , quantum mechanics

The kinetics of 2,2′‐azobisisobutyronitrile (AIBN) initiated polymerization of styrene in N , N ‐dimethylformamide (DMF) at 60°C were investigated in the presence of dibromo( N , N ‐dimethylformamide)copper(II) complex. The complex was prepared in situ by mixing tetrakis ( N , N ‐dimethylformamide)copper(II) perchlorate with LiBr in the molar ratio of 1 : 2. The equilibrium constant for [Cu(DMF) 4 ] 2+ + 2Br − ⇌ Cu(DMF) 2 Br 2 + 2DMF was calculated by the limiting logarithmic method as 1.80 × 10 3 L 2 mol −2 . The velocity constant at 60°C for the interaction of polystyryl radical with Cu(DMF) 2 Br 2 is 7.46 × 10 4 L mol −1 s −1 .

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