High-temperature redox-initiated emulsion polymerization of butadiene
Article first published online: 9 MAR 2003
Copyright © 1982 John Wiley & Sons, Inc.
Journal of Applied Polymer Science
Volume 27, Issue 4, pages 1385–1393, April 1982
How to Cite
Padwa, A. R. and Paster, M. D. (1982), High-temperature redox-initiated emulsion polymerization of butadiene. J. Appl. Polym. Sci., 27: 1385–1393. doi: 10.1002/app.1982.070270427
- Issue published online: 9 MAR 2003
- Article first published online: 9 MAR 2003
- Manuscript Accepted: 6 OCT 1981
- Manuscript Received: 21 AUG 1981
The kinetics of the ferric ethylenediaminetetraacetate (EDTA)–diisopropylbenzene hydroperoxide (DIBHP)-sodium formaldehyde sulfoxylate (SFS) redox system were determined. The rate constant is a function of the ionic strength μ. A plot of log10 (rate constant), for the rate-limiting second-order iron—SFS reaction, vs.μ1/2 has a slope of 1.3 with a limiting rate constant of 295 ± 15 L. mol−1. min−1 at μ = 0. The slope of this plot decreases to essentially zero for μ > 0.06M. Incorporation of these results into the Smith-Ewart model for emulsion polymerization correctly predicts the dependence of latex particle size on Fe and DIBHP concentration, but a much lower dependence on SFS concentration is observed.