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Publicly Available Published by De Gruyter August 31, 2013

Determination of vinyl acetate propagation rate coefficients via high frequency pulsed laser polymerization

  • Thomas Junkers EMAIL logo , Dominik Voll and Christopher Barner-Kowollik EMAIL logo
From the journal e-Polymers

Abstract

New data on the propagation rate coefficient, kp, of vinyl acetate (VAc) are obtained via the IUPAC recommended method of pulsed laser polymerization - size exclusion chromatography (PLP-SEC) operated at 500 Hz laser repetition rate. An apparent dependency of the experiment’s outcome on the laser pulsing rate is identified with kp being about 25 % larger at 500 Hz compared to 100 Hz. The temperature dependence of kp was determined to fit ln kp = 17.12 - 2621 K/T; data is in generally good agreement with literature values when the previous underestimation of kp by 100 Hz laser pulsing experiments is taken into account.

Published Online: 2013-8-31
Published in Print: 2009-12-1

© 2013 by Walter de Gruyter GmbH & Co.

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