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Docosanoyl itaconate/1-docosylamine alternate-layer Langmuir-Blodgett films: Polymerisation, pyroelectric properties and infrared spectroscopic studies

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  • Dr John Tsibouklis
  • Michael Petty
  • Yi Ping Song
  • Robert Richardson
  • Jack Yarwood
  • Michael C. Petty
  • W. James Feast

Langmuir-Blodgett multilayers of an isomeric mixture of an itaconate monoester have been prepared. Multilayers were polymerised via initiation by irradiation with ultraviolet light and the reactions studied by UV-VIS spectrophotometry and gel permeation chromatography. Alternate-layer structures of the itaconate monomer and the corresponding polymer with an aliphatic amine have also been built-up. X-Ray reflectivity experiments have indicated that the bilayer spacing of these films did not change upon polymerisation. An evaluation of the pyroelectric properties of the alternate-layer structures revealed that, although the monomer/amine system possessed a pyroelectric coefficient of 1.4 μC m-2 K-1, polymer/amine films were not pyroelectric. The mechanism responsible for the loss of the pyroelectric activity is discussed on the basis of infrared spectroscopic investigations.

Original languageEnglish
Pages (from-to)819-826
Number of pages8
JournalJournal of Materials Chemistry
Issue number5
Publication statusPublished - 1 Jan 1991

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