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

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

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 conference › Paper › peer-review

Abstract

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 language	English
Number of pages	1
Publication status	Published - 2006 Oct 19
Externally published	Yes
Event	55th SPSJ Annual Meeting - Nagoya, Japan Duration: 2006 May 24 → 2006 May 26

Conference

Conference	55th SPSJ Annual Meeting
Country/Territory	Japan
City	Nagoya
Period	06/5/24 → 06/5/26

Keywords

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

ASJC Scopus subject areas

Engineering(all)

Cite this

@conference{539fdaf0af664bd8bca32bc618f0e80f,

title = "Surface properties of thiol-terminated thermo-sensitive polymers immobilized on gold",

abstract = "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.",

keywords = "Anionic Ring-opening Polymerization, QCM, Self-Assembled Monolayers: (SAMs), Thermo-sensitive Polymer",

author = "Hiroshi Kakikawa and Sayaka Inoue and Hisashi Kokubo and Imabayashi, {Shin Ichiro} and Masayoshi Watanabe",

year = "2006",

month = oct,

day = "19",

language = "English",

note = "55th SPSJ Annual Meeting ; Conference date: 24-05-2006 Through 26-05-2006",

}

TY - CONF

T1 - Surface properties of thiol-terminated thermo-sensitive polymers immobilized on gold

AU - Kakikawa, Hiroshi

AU - Inoue, Sayaka

AU - Kokubo, Hisashi

AU - Imabayashi, Shin Ichiro

AU - Watanabe, Masayoshi

PY - 2006/10/19

Y1 - 2006/10/19

N2 - 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.

AB - 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.

KW - Anionic Ring-opening Polymerization

KW - QCM

KW - Self-Assembled Monolayers: (SAMs)

KW - Thermo-sensitive Polymer

UR - http://www.scopus.com/inward/record.url?scp=33749857811&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33749857811&partnerID=8YFLogxK

M3 - Paper

AN - SCOPUS:33749857811

T2 - 55th SPSJ Annual Meeting

Y2 - 24 May 2006 through 26 May 2006

ER -

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

Abstract

Conference

Keywords

ASJC Scopus subject areas

Other files and links

Fingerprint

Cite this