Palladium-polyaniline type composite polymers: Using catalysis as a monitor of palladium location

Kaushik Mallick, Kartick Mondal, Michael J. Witcomb, Stefania M. Scalzullo, Tshifiwa Maphala, Michael S. Scurrell

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


The location of nanosized (2-4 nm) palladium particles in two palladium-polyaniline-based composites, synthesized by the redox coupling route using monomer and palladium(ll) acetate, have been revealed using ethene hydrogenation as a heterogeneously catalysed reaction, together with differential scanning calorimetry. The two palladium composites were synthesized using m-aminobenzoic acid (ABA) or o-phenylenediamine (PDA), leading to Pd-PABA or Pd-PPDA, respectively. The temperature sensitivity of catalytic activity related to the polymer melting temperature, as revealed by DSC, assists in understanding the location of the palladium particles. The structures of the metal-polymer composite at the micrometre and nanometre levels are revealed using scanning and transmission electron microscopy, respectively.

Original languageEnglish
Pages (from-to)496-498
Number of pages3
JournalSouth African Journal of Science
Issue number11-12
Publication statusPublished - 2008
Externally publishedYes

ASJC Scopus subject areas

  • General Biochemistry,Genetics and Molecular Biology
  • General Agricultural and Biological Sciences
  • General Earth and Planetary Sciences


Dive into the research topics of 'Palladium-polyaniline type composite polymers: Using catalysis as a monitor of palladium location'. Together they form a unique fingerprint.

Cite this