Title:
CORE/SHELL TYPE NANOPARTICLES
Document Type and Number:
WIPO Patent Application WO/2006/051627
Kind Code:
A1
Abstract:
The invention aims at providing core/shell type nanoparticles which have high heat resistance and shape retentivity and contain as the core nanoparticles having specific particle diameters which were difficult of production. Such core/shell type nanoparticles can be produced by preparing aromatic nanoparticles through the polymerization of an aromatic compound such as trialkoxybenzene with an aldehyde, surface-modifying the nanoparticles with reactive functional groups, and introducing graft chains to the resulting nanoparticles by graft polymerization with the reactive functional groups used as the initiator or the terminator through ring-opening polymerization, vinyl polymerization or addition polymerization. For example, bromomethyl is used as the reactive functional group and the graft polymerization is conducted by ring-opening polymerization of oxazoline, or ARTP polymerization of acrylic acid derivatives, styrene, or the like with the bromomethyl used as the initiator. Thus, core/shell type nanoparticles wherein the aromatic nanoparticle constitutes the core and the graft chain constitutes the shell can be obtained.
Inventors:
KONISHI GENICHI (JP)
OZEKI NATUKI (JP)
NAKAMOTO YOSHIAKI (JP)
OZEKI NATUKI (JP)
NAKAMOTO YOSHIAKI (JP)
Application Number:
PCT/JP2005/007885
Publication Date:
May 18, 2006
Filing Date:
April 26, 2005
Export Citation:
Assignee:
UNIV KANAZAWA NAT UNIV CORP (JP)
KONISHI GENICHI (JP)
OZEKI NATUKI (JP)
NAKAMOTO YOSHIAKI (JP)
KONISHI GENICHI (JP)
OZEKI NATUKI (JP)
NAKAMOTO YOSHIAKI (JP)
International Classes:
C08G16/04; C08G73/04; C08G85/00; (IPC1-7): C08G16/04; C08G73/04; C08G85/00
Foreign References:
| JPS5254800A | 1977-05-04 | |||
| JP2004107455A | 2004-04-08 |
Other References:
KIMURA T. ET AL: "2-Methyl -2-Oxazoline no Kinosei Phenol Polymer eno Graft Jug o", THE 34TH CONGRESS OF HETEROCYCLIC CHEMISTRY KOEN YOSHISHU, vol. 34, 1 November 2004 (2004-11-01), pages 169 - 170, XP003006193
OZEKI N. ET AL: "Phenol-kei Tabunki Polymer no Kinoka", POLYMER PREPRINTS, JAPAN, vol. 53, no. 1, 10 May 2004 (2004-05-10), pages 508, XP003006194
KONISHI G. ET AL: "Design-kata Phenol o Mochiita Nono Biryushi no Sosei", DAI 54 KAI PROCEEDINGS OF THE THERMOSETTING PLASTICS SYMPOSIUM JAPAN, 21 October 2004 (2004-10-21), pages 13 - 14, XP002993478
KONISHI G.: "Hachi no Sugata Nano Biryushi", NETWORK POLYMER, vol. 26, no. 1, 10 March 2005 (2005-03-10), pages 32 - 34, XP003006195
OZEKI N. ET AL: "Phenol-kei Tabunki Polymer no Kinoka", POLYMER PREPRINTS, JAPAN, vol. 53, no. 1, 10 May 2004 (2004-05-10), pages 508, XP003006194
KONISHI G. ET AL: "Design-kata Phenol o Mochiita Nono Biryushi no Sosei", DAI 54 KAI PROCEEDINGS OF THE THERMOSETTING PLASTICS SYMPOSIUM JAPAN, 21 October 2004 (2004-10-21), pages 13 - 14, XP002993478
KONISHI G.: "Hachi no Sugata Nano Biryushi", NETWORK POLYMER, vol. 26, no. 1, 10 March 2005 (2005-03-10), pages 32 - 34, XP003006195
Attorney, Agent or Firm:
Otani, Kaichi (Suehirocho Takaoka-shi Toyama, 23, JP)
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