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Contrasting Melting Behavior of Zinc Stearate and Zinc Oleate

American Chemical Society
Publication Date
  • Solid State & Structural Chemistry Unit
  • Inorganic & Physical Chemistry
  • Physics


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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