Chapter 4. Investigation of the Chain Length Dependence of kp: New Results Obtained with Homogeneous and Heterogeneous Polymerization
- Prof. Dr. Michael Buback3,
- A. M. van Herk4
Published Online: 31 MAY 2007
DOI: 10.1002/9783527610860.ch4
Copyright © 2007 Wiley-VCH Verlag GmbH & Co. KGaA
Book Title
Radical Polymerization: Kinetics and Mechanism, Volume 248
Additional Information
How to Cite
Schnöll-Bitai, I. and Mader, C. (2007) Investigation of the Chain Length Dependence of kp: New Results Obtained with Homogeneous and Heterogeneous Polymerization, in Radical Polymerization: Kinetics and Mechanism, Volume 248 (eds M. Buback and A. M. van Herk), Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim, Germany. doi: 10.1002/9783527610860.ch4
Editor Information
- 3
Institute of Physical Chemistry, Georg-August-University Göttingen, Tammannstrasse 6, D-37077 Göttingen, Germany
- 4
Laboratory for Polymer Chemistry, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, PO Box 513, 5600 MB Eindhoven, The Netherlands
Publication History
- Published Online: 31 MAY 2007
- Published Print: 13 APR 2007
Book Series:
ISBN Information
Print ISBN: 9783527320561
Online ISBN: 9783527610860
- Summary
- Chapter
- References
Keywords:
- gel permeation chromatography;
- kinetics (polym.);
- polystyrene;
- radical polymerization
Summary
New experimental results were collected for the free radical polymerization of styrene by pulsed laser polymerization in solution or in microemulsion. The location of the point of inflection (on the low molecular weight side) and the maximum of the first peak in the chromatograms (measured by size-exclusion chromatography) was used to extract kp data. The extent of band broadening was determined with narrow polystyrene standards with an assumed Poisson chain length distribution. For a given experiment both kp values (obtained via the point of inflection and the maximum) were corrected and thus became identical in most cases. Even after the correction, the effect of chain length dependence persists to a higher chain length.