Metal nanoparticle composite and method for producing the same

摘要

Provided are a metal nanoparticle composite which exhibits excellent stability over time and retention stability and is useful as a raw material for a metal nanoparticle-dispersed film, a method for producing the composite, a metal nanoparticle dispersion liquid, a composition for forming a metal nanoparticle-dispersed film, and a metal nanoparticle-dispersed film. Disclosed is a metal nanoparticle composite comprising (A) a star-shaped polymer having a central core and arms bonded to the central core, the arms comprising a repeating unit represented by the following formula (1) and a repeating unit represented by the following formula (2); and (B) metal nanoparticles supported thereon: wherein in the formula (1), R1 represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms; and in the formula (2), R2 represents a methyl group or an ethyl group; and k represents an integer from 1 to 10.;

主权项

1. A metal nanoparticle composite, comprising:
(A) a star-shaped polymer comprising a central core and arms bonded to the central core, wherein the arms comprise a repeating unit represented by formula (1): and a repeating unit represented by formula (2): wherein R1 represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, R2 represents a methyl group or an ethyl group, and k represents an integer from 1 to 10; and (B) metal nanoparticles supported thereon, wherein the metal nanoparticle composite comprises from 13 parts to 50 parts by mass of the metal nanoparticles relative to 1 part by mass of the star-shaped polymer.