Molecular Level Ceramic/Polymer Composites. 1. Synthesis of Polymer-Trapped Oxide Nanoclusters of Chromium and Iron

Manish Nandi, Jeanine A. Conklin, Ayusman Sen, Lawrence Salvati

Research output: Contribution to journalArticle

89 Citations (Scopus)

Abstract

Cr(CeH6)2 or Fe3(CO)12 was added to polyamic acid solutions derived from 4, 4′ oxydianiline and either 1, 2, 4, 5-benzenetetracarboxylic acid dianhydride or 3, 3′, 4, 4′-benzophenonetetracarboxylic acid dianhydride. Following thermal curing, polyimide films containing a homogeneous dispersion of nanoclusters (size <1–1.5 nm) of Cr2O3 or α-Fe(O)(OH) were obtained. Both scanning electron microscopy and secondary ion mass spectroscopy depth profile indicated that the usually observed migration of the dopant to the polymer surface had not occurred. The chemical composition of the dopants were established by X-ray photoelectron spectroscopy.

Original languageEnglish (US)
Pages (from-to)772-776
Number of pages5
JournalChemistry of Materials
Volume2
Issue number6
DOIs
StatePublished - Nov 1 1990

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Nanoclusters
Chromium
Polymers
Doping (additives)
Iron
Oxides
Acids
Composite materials
Polyimides
Curing
X ray photoelectron spectroscopy
Spectroscopy
Ions
Scanning electron microscopy
Chemical analysis
chromium oxide
ferric oxide
dodecacarbonyl iron
polyamic acid
pyromellitic acid

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Chemistry

Cite this

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abstract = "Cr(CeH6)2 or Fe3(CO)12 was added to polyamic acid solutions derived from 4, 4′ oxydianiline and either 1, 2, 4, 5-benzenetetracarboxylic acid dianhydride or 3, 3′, 4, 4′-benzophenonetetracarboxylic acid dianhydride. Following thermal curing, polyimide films containing a homogeneous dispersion of nanoclusters (size <1–1.5 nm) of Cr2O3 or α-Fe(O)(OH) were obtained. Both scanning electron microscopy and secondary ion mass spectroscopy depth profile indicated that the usually observed migration of the dopant to the polymer surface had not occurred. The chemical composition of the dopants were established by X-ray photoelectron spectroscopy.",
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Molecular Level Ceramic/Polymer Composites. 1. Synthesis of Polymer-Trapped Oxide Nanoclusters of Chromium and Iron. / Nandi, Manish; Conklin, Jeanine A.; Sen, Ayusman; Salvati, Lawrence.

In: Chemistry of Materials, Vol. 2, No. 6, 01.11.1990, p. 772-776.

Research output: Contribution to journalArticle

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AU - Nandi, Manish

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AU - Sen, Ayusman

AU - Salvati, Lawrence

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AB - Cr(CeH6)2 or Fe3(CO)12 was added to polyamic acid solutions derived from 4, 4′ oxydianiline and either 1, 2, 4, 5-benzenetetracarboxylic acid dianhydride or 3, 3′, 4, 4′-benzophenonetetracarboxylic acid dianhydride. Following thermal curing, polyimide films containing a homogeneous dispersion of nanoclusters (size <1–1.5 nm) of Cr2O3 or α-Fe(O)(OH) were obtained. Both scanning electron microscopy and secondary ion mass spectroscopy depth profile indicated that the usually observed migration of the dopant to the polymer surface had not occurred. The chemical composition of the dopants were established by X-ray photoelectron spectroscopy.

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