Nanostructure and mechanical properties of aromatic polyamide and reactive organoclay nanocomposites

Muhammad Usman Alvi, Sonia Zulfiqar, Cafer T. Yavuz, Hee Seok Kweon, Muhammad Ilyas Sarwar

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

Aromatic polyamide/organoclay nanocomposites were synthesized using the solution blending technique. Treatment of montmorillonite clay with p-phenylenediamine produced reactive organophilic clay for good compatibility with the matrix. Polyamide chains were prepared by condensing a mixture of 1,4-phenylenediamine and 4-4′-oxydianiline with isophthaloyl chloride under anhydrous conditions. These chains were end capped with carbonyl chloride using 1% extra acid chloride near the end of reaction to develop the interactions with organoclay. The dispersion and structure-property relationship were monitored using FTIR, XRD, FE-SEM, TEM, DSC and tensile testing of the thin films. The structural investigations confirmed the formation of delaminated and disordered intercalated morphology with nanoclay loadings. This morphology of the nanocomposites resulted in their enhanced mechanical properties. The tensile behavior and glass transition temperature significantly augmented with increasing organoclay content showing a greater interaction between the two disparate phases. © 2014 Elsevier B.V. All rights reserved.
Original languageEnglish (US)
Pages (from-to)636-643
Number of pages8
JournalMaterials Chemistry and Physics
Volume147
Issue number3
DOIs
StatePublished - Oct 15 2014
Externally publishedYes

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

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