Evidence of Branching in Poly(butyl acrylate) Produced in Pulsed-Laser Polymerization Experiments
Branched poly(butyl acrylate) was obtained from pulsed‐laser polymerizations carried out in bulk and in solution between −16 and 60 °C. The predominantly short branches are formed by backbiting. The Arrhenius temperature dependence of the backbiting rate is calculated, and the activation energy of t...
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Published in | Macromolecular rapid communications. Vol. 24; no. 2; pp. 173 - 177 |
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Main Authors | , , , , , |
Format | Journal Article |
Language | English |
Published |
Weinheim
WILEY-VCH Verlag
01.02.2003
WILEY‐VCH Verlag Wiley |
Subjects | |
Online Access | Get full text |
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Summary: | Branched poly(butyl acrylate) was obtained from pulsed‐laser polymerizations carried out in bulk and in solution between −16 and 60 °C. The predominantly short branches are formed by backbiting. The Arrhenius temperature dependence of the backbiting rate is calculated, and the activation energy of this process was found to be remarkably higher than that of propagation. Branching thus increases with temperature leading to broader SEC traces and difficulties in the accurate determination of kp.
Arrhenius plot of kfp2 versus 1/T determined experimentally. |
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Bibliography: | ark:/67375/WNG-2VZPKPCT-T ArticleID:MARC200390030 istex:4DED538C60ED46B87CBD5624B0DED463EAF5C6F0 |
ISSN: | 1022-1336 1521-3927 |
DOI: | 10.1002/marc.200390030 |