Abstract
We synthesized various thermosensitive star-shaped polymer by living cationic polymerization with various Lewis acids in the presence of an added base. Thermosensitive gold nanoparticles (∼3nm) were prepared using thermosensitive star-shaped polymers with oxyethylene side chains as a template. The thermosensitive gold nanoparticles catalyzed aerobic alcohol oxidation in water at room temperature. A feature of these polymer-stabilized gold nanoparticles was their high durability even in an oxidation reaction. These particles can readily be separated from oxidation reaction mixture using thermosensitivity of star-shaped polymer. In addition, the particles redissolved in water at room temperature after recovery. Reuse of the particles in aerobic alcohol oxidation is currently under investigation.
| Original language | English |
|---|---|
| Title of host publication | Polymer Preprints, Japan |
| Pages | 2529-2530 |
| Number of pages | 2 |
| Volume | 55 |
| Edition | 2 |
| Publication status | Published - 2006 |
| Externally published | Yes |
| Event | 55th Society of Polymer Science Japan Symposium on Macromolecules - Toyama, Japan Duration: 2006 Sep 20 → 2006 Sep 22 |
Other
| Other | 55th Society of Polymer Science Japan Symposium on Macromolecules |
|---|---|
| Country | Japan |
| City | Toyama |
| Period | 06/9/20 → 06/9/22 |
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Keywords
- Catalyst
- Cationic polymerization
- Gold nanoparticle
- Living polymerization
- Star-shaped polymer
- Thermosensitive
ASJC Scopus subject areas
- Engineering(all)
Cite this
Precision synthesis of star-shaped polymers by living cationic polymerization and preparation of thermosensitive gold nanoparticles. / Yagi, Naoto; Fukuyama, Yukiko; Kontant, Seiji; Kanaoka, Shokyoku; Aoshima, Sadahito; Tsunoyama, Hironori; Tsukuda, Tatsuya; Sakurai, Hidehiro.
Polymer Preprints, Japan. Vol. 55 2. ed. 2006. p. 2529-2530.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Precision synthesis of star-shaped polymers by living cationic polymerization and preparation of thermosensitive gold nanoparticles
AU - Yagi, Naoto
AU - Fukuyama, Yukiko
AU - Kontant, Seiji
AU - Kanaoka, Shokyoku
AU - Aoshima, Sadahito
AU - Tsunoyama, Hironori
AU - Tsukuda, Tatsuya
AU - Sakurai, Hidehiro
PY - 2006
Y1 - 2006
N2 - We synthesized various thermosensitive star-shaped polymer by living cationic polymerization with various Lewis acids in the presence of an added base. Thermosensitive gold nanoparticles (∼3nm) were prepared using thermosensitive star-shaped polymers with oxyethylene side chains as a template. The thermosensitive gold nanoparticles catalyzed aerobic alcohol oxidation in water at room temperature. A feature of these polymer-stabilized gold nanoparticles was their high durability even in an oxidation reaction. These particles can readily be separated from oxidation reaction mixture using thermosensitivity of star-shaped polymer. In addition, the particles redissolved in water at room temperature after recovery. Reuse of the particles in aerobic alcohol oxidation is currently under investigation.
AB - We synthesized various thermosensitive star-shaped polymer by living cationic polymerization with various Lewis acids in the presence of an added base. Thermosensitive gold nanoparticles (∼3nm) were prepared using thermosensitive star-shaped polymers with oxyethylene side chains as a template. The thermosensitive gold nanoparticles catalyzed aerobic alcohol oxidation in water at room temperature. A feature of these polymer-stabilized gold nanoparticles was their high durability even in an oxidation reaction. These particles can readily be separated from oxidation reaction mixture using thermosensitivity of star-shaped polymer. In addition, the particles redissolved in water at room temperature after recovery. Reuse of the particles in aerobic alcohol oxidation is currently under investigation.
KW - Catalyst
KW - Cationic polymerization
KW - Gold nanoparticle
KW - Living polymerization
KW - Star-shaped polymer
KW - Thermosensitive
UR - http://www.scopus.com/inward/record.url?scp=33846148338&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33846148338&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:33846148338
VL - 55
SP - 2529
EP - 2530
BT - Polymer Preprints, Japan
ER -