Temperature response of thermoresponsive polyethers immobilized on gold substrates

Sayaka Inoue, Naotaka Nakadan, Shinichiro Imabayashi, Masayoshi Watanabe

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Thermosensitive polymers that possess Lower Critical Solution Temperature (LCST) undergo a thermally induced reversible hydration-dehydration phase transition in aqueous solution. It has been known that the transition of polymer chain from coil to globule takes place in a narrow range of temperature. In this study, thermosensitive polyethers having thiol terminus was adsorbed onto a gold substrate through Au-S bonding. Water wetting properties of the polymer-adsorbed gold surface were observed by contact angle measurements with raising temperature, and a sharp increase in wettability occurred at 36°C. This result implies a collapse of the polymer chain on the substrate while increasing the surface temperature, turning out the surface to be more hydrophobic. Moreover, the temperature where the change in surface wettability was observed (Tw) increased with increasing the molecular weigh of polymer, suggesting that the effect of hydrophobic phenothiazine group on the polymer phase transition weakened as the molecular length had increased.

Original languageEnglish
Title of host publicationPolymer Preprints, Japan
Pages1555
Number of pages1
Volume54
Edition1
Publication statusPublished - 2005
Externally publishedYes
Event54th SPSJ Annual Meeting 2005 - Yokohama
Duration: 2005 May 252005 May 27

Other

Other54th SPSJ Annual Meeting 2005
CityYokohama
Period05/5/2505/5/27

Fingerprint

Polyethers
Gold
Polymers
Substrates
Wetting
Temperature
Phase transitions
Angle measurement
Dehydration
Hydration
Contact angle
Water

Keywords

  • Contact angle
  • Monolayer
  • SAM
  • Surface modification
  • Thermosensitive polymers

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Inoue, S., Nakadan, N., Imabayashi, S., & Watanabe, M. (2005). Temperature response of thermoresponsive polyethers immobilized on gold substrates. In Polymer Preprints, Japan (1 ed., Vol. 54, pp. 1555)

Temperature response of thermoresponsive polyethers immobilized on gold substrates. / Inoue, Sayaka; Nakadan, Naotaka; Imabayashi, Shinichiro; Watanabe, Masayoshi.

Polymer Preprints, Japan. Vol. 54 1. ed. 2005. p. 1555.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Inoue, S, Nakadan, N, Imabayashi, S & Watanabe, M 2005, Temperature response of thermoresponsive polyethers immobilized on gold substrates. in Polymer Preprints, Japan. 1 edn, vol. 54, pp. 1555, 54th SPSJ Annual Meeting 2005, Yokohama, 05/5/25.
Inoue S, Nakadan N, Imabayashi S, Watanabe M. Temperature response of thermoresponsive polyethers immobilized on gold substrates. In Polymer Preprints, Japan. 1 ed. Vol. 54. 2005. p. 1555
Inoue, Sayaka ; Nakadan, Naotaka ; Imabayashi, Shinichiro ; Watanabe, Masayoshi. / Temperature response of thermoresponsive polyethers immobilized on gold substrates. Polymer Preprints, Japan. Vol. 54 1. ed. 2005. pp. 1555
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