Journal of the Korean Chemical Society (대한화학회지)

Korean Chemical Society (대한화학회)
권호 표지

The Isosteric Heats of Adsorption of Amines on Paraffin and Polyethyleneglycol

  • Sohn Jong Rack (Department of applied chemistry, Kyungpook National University) ;
  • Kim, Jong Taik (Department of applied chemistry, Kyungpook National University)
  • Published : 1972.08.30
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Abstract

Isostric heats of adsorption of amines on paraffin and polyethyleneglycol were measured by gas chromatography. Value with polyethyleneglycol were significantly higher than those with paraffin due to the N-H...O bonding. The contribution of C-H...O bonding to the isosoteric heats of adsorption was negligible. The additional heats of adsorption observed as the sample size increased also increased as the number of amino hydrogen atoms decreased. This tendency was more significant with polyethyleneglycol indicating that strong directing force of amino hydrogen of primary and secondary amines to the surface hinder lateral attractive interaction which could be favored with free orientation.

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