Star-like copolymer stabilized noble-metal nanoparticle powders

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

Research output: Contribution to journalArticle

12 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 languageEnglish
Pages (from-to)7435-7442
Number of pages8
JournalNanoscale
Volume8
Issue number14
DOIs
Publication statusPublished - 2016 Apr 14
Externally publishedYes

ASJC Scopus subject areas

  • Materials Science(all)

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    Cao, P. F., Yan, Y. H., Mangadlao, J. D., Rong, L. H., & Advincula, R. (2016). Star-like copolymer stabilized noble-metal nanoparticle powders. Nanoscale, 8(14), 7435-7442. https://doi.org/10.1039/c5nr07000g