Impedance Spectroscopy of Reactive Polymers

Jovan Mijovic, Francesco Bellucci, Luifi Nicolais

Research output: Contribution to journalArticle

Abstract

An investigation was carried out of correlations between dielectric, spectroscopic, and rheological properties during reactions in several epoxy/amine epoxy/amine formulations of both polymer-forming and nonpolymer-forming nature. Dielectric results obtained from impedance spectroscopy were compared with results from near-infrared spectroscopy, high performance liquid chromatography, and steady shear and dynamic mechanical measurements. Reaction kinetics obtained from dielectric, spectroscopic, and chromatographic results were in excellent agreement. Gelation and vitrification times of multifunctional formulations, determined by dielectric and rheological measurements, agreed surprisingly well, despite the empirical nature of such correlations. Nonetheless, a realization of the full potential of dielectric impedance spectroscopy in monitoring the progress of chemophysical changes in reactive polymers necessitates the development of fundamental scientific correlations between dielectric and chemorheological phenomena during cure.

Original languageEnglish (US)
Pages (from-to)1176-1182
Number of pages7
JournalJournal of the Electrochemical Society
Volume142
Issue number4
DOIs
StatePublished - 1995

Fingerprint

Functional polymers
Spectroscopy
impedance
polymers
spectroscopy
amines
Amines
mechanical measurement
formulations
vitrification
liquid chromatography
gelation
Vitrification
Near infrared spectroscopy
High performance liquid chromatography
Gelation
dielectric properties
reaction kinetics
Reaction kinetics
infrared spectroscopy

ASJC Scopus subject areas

  • Electrochemistry
  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials
  • Materials Chemistry
  • Renewable Energy, Sustainability and the Environment
  • Surfaces, Coatings and Films

Cite this

Impedance Spectroscopy of Reactive Polymers. / Mijovic, Jovan; Bellucci, Francesco; Nicolais, Luifi.

In: Journal of the Electrochemical Society, Vol. 142, No. 4, 1995, p. 1176-1182.

Research output: Contribution to journalArticle

Mijovic, Jovan ; Bellucci, Francesco ; Nicolais, Luifi. / Impedance Spectroscopy of Reactive Polymers. In: Journal of the Electrochemical Society. 1995 ; Vol. 142, No. 4. pp. 1176-1182.
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