Critically Evaluated Rate Coefficients in Radical Polymerization – 8. Propagation Rate Coefficients for Vinyl Acetate in Bulk

Christopher Barner-Kowollik, Sabine Beuermann, Michael Buback, Robin A. Hutchinson, Thomas Junkers, Hendrik Kattner, Bart Manders, Anatoly N. Nikitin, Gregory T. Russell, Alex M. van Herk

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Abstract

Propagation rate coefficient values, kp, reported by several groups for radical polymerization of bulk vinyl acetate are critically evaluated. All data are obtained by the combination of pulsed-laser polymerization and subsequent polymer analysis by size exclusion chromatography, as recommended by the IUPAC Working Party on Modeling of Polymerization Kinetics and Processes. Although a small (≈15%) increase in kp is observed as laser pulse repetition rate is increased from low (25–100 Hz) to high (300–500 Hz) values, all of the data fulfill the required consistency criteria and thus are combined into a benchmark set covering the temperature range of 5–70 °C. The data are fitted well by an Arrhenius relation resulting in a pre-exponential factor of 1.35 × 107 L mol−1 s−1 and an activation energy of 20.4 kJ mol−1, with 95% confidence ellipsoids for the parameters also presented. (Figure presented.).

Original languageEnglish
Article number1600357
JournalMacromolecular Chemistry and Physics
Volume218
Issue number1
DOIs
Publication statusPublished - 1 Jan 2017
Externally publishedYes

Keywords

  • kinetics
  • pulsed laser polymerization
  • radical polymerization
  • vinyl acetate

Cite this

Barner-Kowollik, C., Beuermann, S., Buback, M., Hutchinson, R. A., Junkers, T., Kattner, H., Manders, B., Nikitin, A. N., Russell, G. T., & van Herk, A. M. (2017). Critically Evaluated Rate Coefficients in Radical Polymerization – 8. Propagation Rate Coefficients for Vinyl Acetate in Bulk. Macromolecular Chemistry and Physics, 218(1), [1600357]. https://doi.org/10.1002/macp.201600357