Formation of surface molecular macroclusuters and fabrication of polymer nano-film: Dependence on surface density of hydrogen-bonded functional groups

S. Endo, K. Kurihara

Research output: Contribution to conferencePaperpeer-review

Abstract

We have demonstrated that ethanol macroclusters of ca. 5-6 nm in thickness are formed on gold substrates modified with mercapto compounds bearing hydrogen-bonding functional groups, namely, OH and COOH groups. This study aims at examining the effect of the surface density of hydrogen-bonding groups on the ethanol adsorption layer. We modified gold substrates with SAMs of 11-mercaptoundecanol and n-octylmercaptan mixtures. With increasing the surface density of the COOH groups, the change values of SPR effective angle at 1.8 mo% ethanol relative to the cyclohexane, |Δθeff(1.8)|, increase from 0.03° at 0 % surface density to 0.46° at 100 %. By utilizing this phenomenon, we can change the thickness of the ethanol adsorption layer by changing the surface density of hydrogen-bonding groups. In addition, we report the formation of the polyacrylic acid nano-film on the gold surface modified with the mercapto compound bearing OH and COOH groups.

Original languageEnglish
Pages4326-4327
Number of pages2
Publication statusPublished - 2006
Event55th Society of Polymer Science Japan Symposium on Macromolecules - Toyama, Japan
Duration: 2006 Sep 202006 Sep 22

Other

Other55th Society of Polymer Science Japan Symposium on Macromolecules
Country/TerritoryJapan
CityToyama
Period06/9/2006/9/22

Keywords

  • Hydrogen bonding
  • Polymer nano-film
  • Self-assembled monolayer
  • Surface molecular macrocluster

ASJC Scopus subject areas

  • Engineering(all)

Fingerprint

Dive into the research topics of 'Formation of surface molecular macroclusuters and fabrication of polymer nano-film: Dependence on surface density of hydrogen-bonded functional groups'. Together they form a unique fingerprint.

Cite this