Poly (phenylene sulfide): synthesis from 1, 4-dibromobenzene and sodium sulfide

Rajan, C. R. ; Nadkarni, V. M. ; Ponrathnam, S. (1988) Poly (phenylene sulfide): synthesis from 1, 4-dibromobenzene and sodium sulfide Journal of Polymer Science Part A: Polymer Chemistry, 26 (9). pp. 2581-2588. ISSN 0887-624X

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Official URL: http://onlinelibrary.wiley.com/doi/10.1002/pola.19...

Related URL: http://dx.doi.org/10.1002/pola.1988.080260927

Abstract

A new route to synthesize poly(p-phenylene sulfide) by nucleophilic substitution of 1,4-dibromobenzene with sodium sulfide in N-methylpyrrolidone is described. Kinetic evaluation shows the reaction to be of second order with two distinctive rate constant regimes. The first rate constant is higher and is operative until 50% conversion, whereas in the second regime (between 50 and 92% conversion) the rate is slower. The kinetics of this route is compared under identical conditions with the conventional synthesis based on 1,4-dichloro benzene and sodium sulfide.

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