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Synthesis of silver nanoparticles using a novel graft copolymer and enhanced particle stability via a "polymer brush effect"
Published in
2008
Volume: 29
   
Issue: 9
Pages: 737 - 742
Abstract
Polymer-encapsulated silver nanoparticles were synthesized and sterically stabilized by a new core-shell type system consisting of poly(S-alt-MA)-graft- PMMA copolymer that acts as a scaffold for the synthesis of size confined nanoparticles. The graft copolymer is synthesized via ambient temperature ATRP using the CuBr/PMDETA catalytic system at ambient temperature. The graft copolymer is hypothesized to function as a scaffold with the anhydride part interacting strongly with the silver ions, while the PMMA graft functions as a polymer brush that stabilizes the dispersion and prevents the particle aggregation due to a 'polymer brush effect'. UV absorption and TEM studies confirm that the synthesized silver composite particles have a core-shell structure. © 2008 WILEY-VCH Verlag GmbH & Co. KGaA.
About the journal
JournalMacromolecular Rapid Communications
ISSN10221336
Open AccessNo
Concepts (39)
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    Abs resins
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    Agglomeration
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    ATOM TRANSFER RADICAL POLYMERIZATION
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    BRUSHES
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    Copolymerization
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    Free radical reactions
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    Graft copolymers
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    Grafting (chemical)
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    Metal ions
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    Monomers
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    Nanoparticles
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    Nanostructured materials
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    Nanostructures
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    Organic polymers
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    Photoresists
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    Plastic products
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    Probability density function
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    Scaffolds
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    Shells (structures)
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    Silver
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    Temperature
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    Ambient temperatures
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    ATOM TRANSFER RADICAL POLYMERIZATION (ATRP)
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    CATALYTIC SYSTEMS
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    CONFINED NANOPARTICLES
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    Core shells
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    Core-shell structures
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    CORESHELL POLYMERS
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    PARTICLE AGGREGATIONS
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    PARTICLE STABILITIES
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    PMMA GRAFTS
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    POLYMER BRUSHES
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    SILVER COMPOSITE PARTICLES
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    Silver ions
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    Silver nanoparticles
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    Synthesis of
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    TYPE SYSTEMS
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    UV ABSORPTIONS
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    Polymers