Star-like copolymer stabilized noble-metal nanoparticle powders

Peng Fei Cao; Yun Hui Yan; Joey Dacula Mangadlao; Li Han Rong; Rigoberto Advincula

doi:10.1039/c5nr07000g

Star-like copolymer stabilized noble-metal nanoparticle powders

Peng Fei Cao, Yun Hui Yan, Joey Dacula Mangadlao, Li Han Rong, Rigoberto Advincula^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

14 Citations (Scopus)

Abstract

The amphiphilic star-like copolymer polyethylenimine-block-poly(ϵ-caprolactone) (PEI-b-PCL) was utilized to transfer the pre-synthesized citrate-capped noble metal nanoparticles (NMNPs) from an aqueous layer to an organic layer without any additional reagents. Dynamic light scattering (DLS) and transmission electron microscopy (TEM) were utilized to study the assembly of the polymers coated on the surface of the citrate-capped NMNPs. After removing the organic solvent, the polymer-coated NMNPs in powder form (PCP-NMNPs) were obtained. The excellent solubility of the PEI-b-PCL allows the PCP-NMNPs to be easily dispersed in most of the organic solvents without any significant aggregation. Moreover, the good thermal stability and long-term stability make PCP-NMNPs an excellent NMNP-containing hybrid system for different specific applications, such as surface coating, catalysis and thermoplastic processing of nanocomposite materials.

Original language	English
Pages (from-to)	7435-7442
Number of pages	8
Journal	Nanoscale
Volume	8
Issue number	14
DOIs	https://doi.org/10.1039/c5nr07000g
Publication status	Published - 2016 Apr 14
Externally published	Yes

ASJC Scopus subject areas

Materials Science(all)

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10.1039/c5nr07000g

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title = "Star-like copolymer stabilized noble-metal nanoparticle powders",

abstract = "The amphiphilic star-like copolymer polyethylenimine-block-poly(ϵ-caprolactone) (PEI-b-PCL) was utilized to transfer the pre-synthesized citrate-capped noble metal nanoparticles (NMNPs) from an aqueous layer to an organic layer without any additional reagents. Dynamic light scattering (DLS) and transmission electron microscopy (TEM) were utilized to study the assembly of the polymers coated on the surface of the citrate-capped NMNPs. After removing the organic solvent, the polymer-coated NMNPs in powder form (PCP-NMNPs) were obtained. The excellent solubility of the PEI-b-PCL allows the PCP-NMNPs to be easily dispersed in most of the organic solvents without any significant aggregation. Moreover, the good thermal stability and long-term stability make PCP-NMNPs an excellent NMNP-containing hybrid system for different specific applications, such as surface coating, catalysis and thermoplastic processing of nanocomposite materials.",

author = "Cao, {Peng Fei} and Yan, {Yun Hui} and Mangadlao, {Joey Dacula} and Rong, {Li Han} and Rigoberto Advincula",

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doi = "10.1039/c5nr07000g",

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T1 - Star-like copolymer stabilized noble-metal nanoparticle powders

AU - Cao, Peng Fei

AU - Yan, Yun Hui

AU - Mangadlao, Joey Dacula

AU - Rong, Li Han

AU - Advincula, Rigoberto

PY - 2016/4/14

Y1 - 2016/4/14

N2 - The amphiphilic star-like copolymer polyethylenimine-block-poly(ϵ-caprolactone) (PEI-b-PCL) was utilized to transfer the pre-synthesized citrate-capped noble metal nanoparticles (NMNPs) from an aqueous layer to an organic layer without any additional reagents. Dynamic light scattering (DLS) and transmission electron microscopy (TEM) were utilized to study the assembly of the polymers coated on the surface of the citrate-capped NMNPs. After removing the organic solvent, the polymer-coated NMNPs in powder form (PCP-NMNPs) were obtained. The excellent solubility of the PEI-b-PCL allows the PCP-NMNPs to be easily dispersed in most of the organic solvents without any significant aggregation. Moreover, the good thermal stability and long-term stability make PCP-NMNPs an excellent NMNP-containing hybrid system for different specific applications, such as surface coating, catalysis and thermoplastic processing of nanocomposite materials.

AB - The amphiphilic star-like copolymer polyethylenimine-block-poly(ϵ-caprolactone) (PEI-b-PCL) was utilized to transfer the pre-synthesized citrate-capped noble metal nanoparticles (NMNPs) from an aqueous layer to an organic layer without any additional reagents. Dynamic light scattering (DLS) and transmission electron microscopy (TEM) were utilized to study the assembly of the polymers coated on the surface of the citrate-capped NMNPs. After removing the organic solvent, the polymer-coated NMNPs in powder form (PCP-NMNPs) were obtained. The excellent solubility of the PEI-b-PCL allows the PCP-NMNPs to be easily dispersed in most of the organic solvents without any significant aggregation. Moreover, the good thermal stability and long-term stability make PCP-NMNPs an excellent NMNP-containing hybrid system for different specific applications, such as surface coating, catalysis and thermoplastic processing of nanocomposite materials.

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Star-like copolymer stabilized noble-metal nanoparticle powders

Abstract

ASJC Scopus subject areas

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