Article

Alternative Synthetic Routes to Epoxy Polymer – Clay Nanocomposites using Organic or Mixed-Ion Clays Modified by Protonated Di/Triamines (Jeffamines)

  1. Kostas S. Triantafyllidis1,*,
  2. Panagiotis I. Xidas1,
  3. Thomas J. Pinnavaia2

Article first published online: 11 JUL 2008

DOI: 10.1002/masy.200850707

Issue

Macromolecular Symposia

Macromolecular Symposia

Special Issue: Nanostructured Polymers and Polymer Nanocomposites

Volume 267, Issue 1, pages 41–46, June 2008

Additional Information

How to Cite

Triantafyllidis, K. S., Xidas, P. I. and Pinnavaia, T. J. (2008), Alternative Synthetic Routes to Epoxy Polymer – Clay Nanocomposites using Organic or Mixed-Ion Clays Modified by Protonated Di/Triamines (Jeffamines). Macromol. Symp., 267: 41–46. doi: 10.1002/masy.200850707

Author Information

  1. 1

    Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece Fax:(+30)2310997730;

  2. 2

    Department of Chemistry, Michigan State University, East Lansing, MI 48824, USA

*Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece Fax:(+30)2310997730;.

Publication History

  1. Issue published online: 11 JUL 2008
  2. Article first published online: 11 JUL 2008

Funded by

  • EU (ESF)
  • Greek General Secretariat for Research and Technology through Programme EPAN-PENED2003

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Keywords:

  • di/triamines (Jeffamines);
  • epoxy resin;
  • nanocomposites;
  • organic and mixed-ion clays;
  • thermo-mechanical properties

Abstract

The use of homoionic organic clays and mixed-ion organic/inorganic clays modified by di- or triamines (Jeffamines), which are being used as epoxy resin curing agents, in the synthesis of polymer nanocomposites has been studied in this work. Our aim is to enhance polymer crosslinking and interfacial adhesion in the nanocomposite structure by utilizing the functionality of the di/triamines on the surface of clay nanolayers and by reducing the organic modifier via formation of homostructured mixed-ion organic/inorganic clays. The results show that the use of homoionic organic clays exchanged with relatively short chain di- or triamines and mixed-ion organic/inorganic clays partially exchanged (ca. 35%) with long chain diamines resulted in intercalated structures with enhanced thermo-mechanical properties (Young's Modulus, Storage Modulus). On the other hand, homoionic organic clays exchanged with long chain diamines and triamines resulted in exfoliated nanocomposites but with compromised mechanical properties due to the plasticizing effect of the long chain amine modifiers.

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