Control of self-assembling processes of polyamidoamine dendrimers and Pd nanoparticles

Tanaka, Hirokazu*; Hashimoto, Takeji; Koizumi, Satoshi; Ito, Hideaki*; Naka, Kensuke*; Chujo, Yoshiki*

We have investigated the self-assembly formed by palladium acetate (Pd(OAc) $_{2}$ ) and polyamidoamine dendrimers (GN-NH $_{2}$ ) in a mixed solvent of methanol and N, N-dimethylformamide. We aim to explore effects of the generation number (GN) and concentration of the dendrimers, [GN-NH $_{2}$ ], on the self-assembly of the dendrimers (defined hereafter as "templates") and the Pd nanoparticles inside the templates in order to clarify physical factors controlling the self-assembling mechanisms. We found that the templates are formed only when [GN-NH $_{2}$ ] falls below a critical value and thereby a sufficient amount of Pd(OAc) $_{2}$ exists as the binders between the dendrimers. Otherwise dendrimers are molecularly dispersed in solution.

Language	:	English
Journal	:	Macromolecules
Volume	:	41
Number	:	5
Pages	:	p.1815 - 1824
Publication Year/Month	:	2008/03
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Paper URL	:	https://doi.org/10.1021/ma702034x
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Keywords	:	no keyword
Research Facility	:	JRR-3M(研究炉3)
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Registration No. : AA20080016
JAEA Abstracts No. : 36000706
Paper Submission No. : 3977

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