Ethanol macrocluster formation on a mercaptoethanol modified gold surface in ethanol/cyclohexane binary liquids studied by surface plasmon resonance

Research output: Contribution to conferencePaperpeer-review

Abstract

We have recently found that ethanol molecules form a hydrogen-bonded organized structure from the silanol groups of the glass surface, which we call an "ethanol macrocluster". This study aims at developing a method for forming similar molecular macroclusters from the other hydrogen bonded functional groups in addition to the silanol group. We modified Au-deposited glass surface with 11-Mercaptoundecanol (11-MUN) and 2-Mercatoethanol (2-MET), respectively. Adsorption of ethanol on these substrates was studied using the surface plasmon resonance (SPR) measurement in ethanol/cyclohexane binary liquids and estimated the thickness of the adsorbed ethanol layer. For both substrates, the difference in SPR angles between the value for cyclohexane and 1.8 mol% ethanol was ca. 0.6 degree, corresponding to 5.5-7 nm thickness of the adsorbed ethanol layer. This result indicated the formation of the ethanol macroclusters from the OH groups on the Au substrate.

Original languageEnglish
Pages3818-3819
Number of pages2
Publication statusPublished - 2005 Dec 1
Event54th SPSJ Symposium on Macromolecules - Yamagata, Japan
Duration: 2005 Sep 202005 Sep 22

Other

Other54th SPSJ Symposium on Macromolecules
CountryJapan
CityYamagata
Period05/9/2005/9/22

Keywords

  • Adsorption
  • Hydrogen bonding
  • Molecular macrocluster
  • Self-assembled monolayer
  • Surface plasmon resonance

ASJC Scopus subject areas

  • Engineering(all)

Fingerprint Dive into the research topics of 'Ethanol macrocluster formation on a mercaptoethanol modified gold surface in ethanol/cyclohexane binary liquids studied by surface plasmon resonance'. Together they form a unique fingerprint.

Cite this