Metal nanoparticles stabilized by functionalized hyperbranched polymers for catalysis

Research output: Contribution to journalArticle

Abstract

Catalytic activity of metal nanoparticles has received attention in homogeneous catalysis. The rate and selectivity of homogeneous catalysis using organometallic complexes are controlled by appropriate design of auxiliary ligands bound to the metal center. For nano sized metal particles, they could be accomplished by appropriate design of the polymer supports with unique structures and properties. Hyperbranched polymers are one of the dendritic polymers, having unique features they received by facile one-pot preparation of monomers and existence of large numbers of functional groups. We found that hyperbranched polystyrenes bearing organoammonium groups are found to be a new polymer support for nano metal particle catalysts of gold, palladium, and platinum. By judicious choice of the R group, both water- and organo-soluble HPS-NR3+Cl- can be prepared. The resulting M@HPS-NR3+Cl- behaves as biphasic catalysts for several organic reactions. Since thin-films of Pd@HPS-NR3 +Cl- can be made with ease, electroless plating of nickel and copper is possible on the surface of solid materials including plastic and ceramics.

Original languageEnglish
Pages (from-to)163-165
Number of pages3
Journalkobunshi
Volume63
Issue number3
Publication statusPublished - Jan 1 2014

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Metal nanoparticles
Catalysis
Polymers
Metals
Bearings (structural)
Dendrimers
Catalysts
Catalyst selectivity
Electroless plating
Polystyrenes
Palladium
Organometallics
Platinum
Nickel
Catalyst supports
Gold
Functional groups
Copper
Catalyst activity
Monomers

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)

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Metal nanoparticles stabilized by functionalized hyperbranched polymers for catalysis. / Nagashima, Hideo.

In: kobunshi, Vol. 63, No. 3, 01.01.2014, p. 163-165.

Research output: Contribution to journalArticle

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