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Contrasting Melting Behavior of Zinc Stearate and Zinc Oleate

Authors
Publisher
American Chemical Society
Publication Date
Keywords
  • Solid State & Structural Chemistry Unit
  • Inorganic & Physical Chemistry
Disciplines
  • Physics

Abstract

The influence of a double bond in the middle of an otherwise flexible hydrocarbon chain on the melting of such assemblies has been investigated by comparing the melting behavior of zinc stearate and zinc oleate. By monitoring features in the infrared spectra that are characteristic of the global conformation of the hydrocarbon chain, it is shown that the double bond effectively decouples the thermal evolution of conformational disorder in the chain segments oil either side of the double bond and the melting of each of these segments in the assembly occurs as independent events.

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