Surface properties of thiol-terminated thermo-sensitive polymers immobilized on gold

Hiroshi Kakikawa, Sayaka Inoue, Hisashi Kokubo, Shin Ichiro Imabayashi, Masayoshi Watanabe

Research output: Contribution to conferencePaperpeer-review


Thiol-functionalized poly(ethoxyethyl glycidyl ether)s (PEEGEs) are synthesized by an anionic ring-opening polymerization and immobilized on gold substrates through Au-S bonding. The amount of adsorbed PEEGE is determined by QCM. The water contact angle (CA) on the PEEGE-modified gold substrate reversibly changes at a given temperature, which is close to the phase separation temperatures of PEEGE aqueous solutions. The change in CA is attributable to the coil-globule transition of PEEGE on the substrate. The temperature at which CA changes is higher for the polymer with a higher molecular weight, which is contrast to the molecular weight dependence of the phase-separation temperature in aqueous solution.

Original languageEnglish
Number of pages1
Publication statusPublished - 2006 Oct 19
Externally publishedYes
Event55th SPSJ Annual Meeting - Nagoya, Japan
Duration: 2006 May 242006 May 26


Conference55th SPSJ Annual Meeting


  • Anionic Ring-opening Polymerization
  • QCM
  • Self-Assembled Monolayers: (SAMs)
  • Thermo-sensitive Polymer

ASJC Scopus subject areas

  • Engineering(all)


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