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Modeling of Free Radical Polymerization of Azobenzene-based Linear Polymers

Published online by Cambridge University Press:  27 February 2012

Danish Iqbal ,
C. Melchert ,
M. Behl ,
A. Lendlein  and
S. Beuermann
Danish Iqbal
Affiliation:
Center for Biomaterial Development, Institute of Polymer Research, HZG Research Center Geesthacht, Kantstr. 55, 14513 Teltow, Germany
C. Melchert
Affiliation:
Center for Biomaterial Development, Institute of Polymer Research, HZG Research Center Geesthacht, Kantstr. 55, 14513 Teltow, Germany
M. Behl
Affiliation:
Center for Biomaterial Development, Institute of Polymer Research, HZG Research Center Geesthacht, Kantstr. 55, 14513 Teltow, Germany
A. Lendlein
Affiliation:
Center for Biomaterial Development, Institute of Polymer Research, HZG Research Center Geesthacht, Kantstr. 55, 14513 Teltow, Germany
S. Beuermann*
Affiliation:
Institute of Chemistry, University of Potsdam, Karl-Liebknecht-Straße 24-25, 14476 Potsdam, Germany
*
*[email protected]
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Abstract

Modeling of free radical polymerizations of the liquid-crystalline monomer 6-[4-(4-heptyloxyphenylazo)phenoxy]hexylacrylate using the PREDICI software package is reported. The model accounts for all elemental reactions that were identified to be important for radical polymerizations of acrylate-type monomers. On the basis of butyl acrylate kinetic data a remarkable agreement between number average molar masses from modelling (Mn,sim) and from experiments (Mn,exp) is observed: Mn,sim = 17800 g·mol−1 and Mn,exp = 17400 g·mol−1. Similarly, dispersity values of 1.8 and 1.6 were determined via modelling and experiments, respectively. It is shown that the assumption of butyl acrylate kinetics provides a reasonable approximation even for acrylate-based monomers having mesogenic substituents.

Keywords

simulationpolymerizationmolecular weight
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1403: Symposium V – Multifunctional Polymer-Based Materials , 2012 , mrsf11-1403-v17-51
Copyright
Copyright © Materials Research Society 2012

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References

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