Arsenic sulfide interacts with styrene to form a complex which in DMSO at 80±0.1°C under N2 atmosphere, initiates radical polymerization of acrylonitrile. The kinetic equation of the system isR p ∞ [complex]0.5 [AN]. The value ofk p 2 /k t and energy of activation for the system are computed as 5.0×10−1 l mol−1 s−1 and 98.2 kJ mol−1, respectively. The polymerization is retarded by hydroquinone. The effect of polar and non-polar solvents has also been discussed. A possible mechanism for the reaction has also been proposed.
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Shukla, P., Srivastava, A.K. Polymerization of acrylonitrile initiated by styrene-arsenic sulfide complex. Colloid Polym Sci 271, 241–245 (1993). https://doi.org/10.1007/BF00652363
- styrene-arsenic sulfide complex
- radical polymerization
- ideal kinetics and mechanism