Preparation and catalytic activity of gold nanoparticles using well-defined thermosensitive polymers

Yukiko Fukuyama; Naoto Yagi; Shokyoku Kanaoka; Sadahito Aoshima; Hironori Tsunoyama; Tatsuya Tsukuda; Hidehiro Sakurai

Preparation and catalytic activity of gold nanoparticles using well-defined thermosensitive polymers

Yukiko Fukuyama, Naoto Yagi, Shokyoku Kanaoka, Sadahito Aoshima, Hironori Tsunoyama, Tatsuya Tsukuda, Hidehiro Sakurai

Research output: Contribution to conference › Paper › peer-review

Abstract

Gold nanoparticles of 1-3 nm with a narrow size distribution were prepared using thermosensitive block or star-shaped polymers with oxyethylene side chains as a template. The thermosensitive polymers, prepared by living cationic polymerization in the presence of an added base, interacted weakly with auric ions in water. The interaction was likely between the auric ions and the oxygen atoms in the pendant of the polymers. The reduction of the ions using NaBH4 gave particles with less than 3 nm in diameter. These polymer-stabilized gold nanoparticles catalyzed aerobic alcohol oxidation in water at room temperature. More importantly, no particles flocculated during and/or after the reaction.

Original language	English
Number of pages	1
Publication status	Published - 2006 Oct 18
Externally published	Yes
Event	55th SPSJ Annual Meeting - Nagoya, Japan Duration: 2006 May 24 → 2006 May 26

Other

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

Keywords

Alcohol oxidation
Cationic polymerization
Gold nanoparticle
Living polymerization
Metal catalyst
Thermosensitive polymer

ASJC Scopus subject areas

Engineering(all)

Cite this

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title = "Preparation and catalytic activity of gold nanoparticles using well-defined thermosensitive polymers",

abstract = "Gold nanoparticles of 1-3 nm with a narrow size distribution were prepared using thermosensitive block or star-shaped polymers with oxyethylene side chains as a template. The thermosensitive polymers, prepared by living cationic polymerization in the presence of an added base, interacted weakly with auric ions in water. The interaction was likely between the auric ions and the oxygen atoms in the pendant of the polymers. The reduction of the ions using NaBH4 gave particles with less than 3 nm in diameter. These polymer-stabilized gold nanoparticles catalyzed aerobic alcohol oxidation in water at room temperature. More importantly, no particles flocculated during and/or after the reaction.",

keywords = "Alcohol oxidation, Cationic polymerization, Gold nanoparticle, Living polymerization, Metal catalyst, Thermosensitive polymer",

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T1 - Preparation and catalytic activity of gold nanoparticles using well-defined thermosensitive polymers

AU - Fukuyama, Yukiko

AU - Yagi, Naoto

AU - Kanaoka, Shokyoku

AU - Aoshima, Sadahito

AU - Tsunoyama, Hironori

AU - Tsukuda, Tatsuya

AU - Sakurai, Hidehiro

PY - 2006/10/18

Y1 - 2006/10/18

N2 - Gold nanoparticles of 1-3 nm with a narrow size distribution were prepared using thermosensitive block or star-shaped polymers with oxyethylene side chains as a template. The thermosensitive polymers, prepared by living cationic polymerization in the presence of an added base, interacted weakly with auric ions in water. The interaction was likely between the auric ions and the oxygen atoms in the pendant of the polymers. The reduction of the ions using NaBH4 gave particles with less than 3 nm in diameter. These polymer-stabilized gold nanoparticles catalyzed aerobic alcohol oxidation in water at room temperature. More importantly, no particles flocculated during and/or after the reaction.

AB - Gold nanoparticles of 1-3 nm with a narrow size distribution were prepared using thermosensitive block or star-shaped polymers with oxyethylene side chains as a template. The thermosensitive polymers, prepared by living cationic polymerization in the presence of an added base, interacted weakly with auric ions in water. The interaction was likely between the auric ions and the oxygen atoms in the pendant of the polymers. The reduction of the ions using NaBH4 gave particles with less than 3 nm in diameter. These polymer-stabilized gold nanoparticles catalyzed aerobic alcohol oxidation in water at room temperature. More importantly, no particles flocculated during and/or after the reaction.

KW - Alcohol oxidation

KW - Cationic polymerization

KW - Gold nanoparticle

KW - Living polymerization

KW - Metal catalyst

KW - Thermosensitive polymer

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M3 - Paper

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T2 - 55th SPSJ Annual Meeting

Y2 - 24 May 2006 through 26 May 2006

ER -

Preparation and catalytic activity of gold nanoparticles using well-defined thermosensitive polymers

Abstract

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Keywords

ASJC Scopus subject areas

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