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e-Polymers

Editor-in-Chief: Agarwal, Seema / Greiner, Andreas

6 Issues per year


IMPACT FACTOR 2017: 1.111

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1618-7229
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Volume 4, Issue 1

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Volume 13 (2013)

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Volume 1 (2001)

Thermal stability of side-chain polymer liquid crystals

João F. Mano
  • Polymer Engineering Department, University of Minho, Campus of Azurém, 4800-058 Guimarães, Portugal
  • 3B´s Research Group – Biomaterials, Biodegradables and Biomimetics, University of Minho, Campus of Gualtar, 4710-057 Braga, Portugal
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Published Online: 2013-08-31 | DOI: https://doi.org/10.1515/epoly.2004.4.1.888

Abstract

Five simple-comb polymer liquid crystals - four polyacrylates and one polysiloxane - were studied using thermogravimetric analysis. A simple kinetic model was used to access the activation energy of the weight loss events. For the polyacrylates one main degradation process was observed with activation energy around 165 kJ/mol, probably involving intramolecular transfer, which would include a coupled weight loss mechanism of both polymeric backbone and mesogenic side-groups. For the studied polysiloxane, two overlapped mechanisms are observed that suggest separate mechanisms for the degradation of side-groups and main chain.

About the article

Published Online: 2013-08-31

Published in Print: 2004-12-01


Citation Information: e-Polymers, Volume 4, Issue 1, 077, ISSN (Online) 1618-7229, ISSN (Print) 2197-4586, DOI: https://doi.org/10.1515/epoly.2004.4.1.888.

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