Temperature effect on the surface phase transitions of monolayer films of C12E1 at air/water interface

Surinder K. Mehta, Yosuke Imai, Hiroki Takumi, Kinue Shibata, Hiroyasu Sakamoto, Takanori Takiue, Hiroki Matsubara, Makoto Aratono

Research output: Contribution to journalArticle

Abstract

The temperature-dependent conformational states of a monolayer film of ethylene glycol monododecyl ether (C12E1) at the air/water interface have been investigated using ellipsometry, surface tension, external reflection-absorption FTIR spectroscopy and two-dimensional infrared (2DIR) correlation analysis. The ellipticity coefficients and the entropy associated with C12E1 adsorption changed almost discontinuously at certain temperatures, which manifested the interfacial phase transitions. The phase transition and coexistence of two phases were further clarified using 2DIR correlation analysis with temperature perturbation. The asynchronous correlation maps revealed that both bands of asymmetric and symmetric C-H stretching vibration in one-dimensional IR were split into two components, which confirmed the coexistence of two phases at the interface.

Original languageEnglish
Pages (from-to)2647-2652
Number of pages6
JournalColloid and Polymer Science
Volume291
Issue number11
DOIs
Publication statusPublished - Nov 1 2013

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Thermal effects
temperature effects
Monolayers
Phase transitions
Water
air
Air
water
Ethylene Glycol
Ellipsometry
ellipticity
Ethylene glycol
Absorption spectroscopy
Ether
Temperature
Stretching
ellipsometry
temperature
Surface tension
glycols

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Polymers and Plastics
  • Colloid and Surface Chemistry
  • Materials Chemistry

Cite this

Temperature effect on the surface phase transitions of monolayer films of C12E1 at air/water interface. / Mehta, Surinder K.; Imai, Yosuke; Takumi, Hiroki; Shibata, Kinue; Sakamoto, Hiroyasu; Takiue, Takanori; Matsubara, Hiroki; Aratono, Makoto.

In: Colloid and Polymer Science, Vol. 291, No. 11, 01.11.2013, p. 2647-2652.

Research output: Contribution to journalArticle

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