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Properties of monolayers of polydiethylethylhydrosiloxane at interfaces


  1. 1.

    Polydiethylethylhydrosiloxane (PDEHS) in monolayers on a water/air interface in the presence of acids and alkalis is hydrolyzed with the formation of more surface-active products. In the case of hydrolysis, the≡Si-H groups of the oligomer are affected first.

  2. 2.

    The high sensitivity of PDEHS to the presence of H+ and OH ions in the substrate permits us to assume that on the surface of glass, which is not, as a rule, neutral, appreciable hydrolysis of PDEHS molecules may occur.

  3. 3.

    A change in the pH of the substrate leads to correlated changes in the pressure in a monolayer of PDEHS and the wettability by water of such layers, transferred to glass by the Langmuir method.

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Additional information

Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 2, pp. 349–353, February, 1974.

The authors would like to thank N. P. Sokolov and N. V. Fedorchenko for obtaining and discussing the IR spectra and V. V. Severnyi for providing the sample of PDEHS.

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Rudoi, V.M., Ogarev, V.A. & Trapeznikov, A.A. Properties of monolayers of polydiethylethylhydrosiloxane at interfaces. Russ Chem Bull 23, 317–320 (1974).

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  • Hydrolysis
  • Oligomer
  • Wettability
  • Correlate Change
  • Langmuir Method