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Volumn 20, Issue 7, 2004, Pages 2867-2873

Polymer-stabilized gold nanoparticles with high grafting densities

Author keywords

[No Author keywords available]

Indexed keywords

DENSITY (SPECIFIC GRAVITY); GRAFTING (CHEMICAL); MONOLAYERS; NANOSTRUCTURED MATERIALS; POLYETHYLENE OXIDES; POLYSTYRENES; SURFACES;

EID: 1842690988     PISSN: 07437463     EISSN: None     Source Type: Journal    
DOI: 10.1021/la0355702     Document Type: Article
Times cited : (272)

References (41)
  • 22
    • 1842707768 scopus 로고    scopus 로고
    • note
    • The Flory-Huggins parameter (χ) describes the energy of interaction of a given polymer segment with other polymers or solvent molecules. When the interactions are favourable (i.e., miscibility is achieved), χ is negative or zero, and when the interactions are unfavourable, χ is positive.
  • 26
    • 1642376259 scopus 로고    scopus 로고
    • Brandrup, J., Immergut, E. H., Grulke, E. A., Eds.; John Wiley and Sons: Toronto
    • Polymer Handbook, 4th ed.; Brandrup, J., Immergut, E. H., Grulke, E. A., Eds.; John Wiley and Sons: Toronto, 1999.
    • (1999) Polymer Handbook, 4th Ed.
  • 30
    • 1842657683 scopus 로고    scopus 로고
    • note
    • 125-Au nanoparticles have a tendency to aggregate when stored at 4 °C. Indeed, after a year, the majority of the sample deposits as dimer and trimer aggregates as observed by TEM (see Figure 1). Gentle heating of these nanoparticles in a toluene solution for 10 min breaks the aggregates apart. However, no change in the UV-vis spectra was noted after heating for this sample.
  • 31
    • 1842657682 scopus 로고    scopus 로고
    • note
    • TEM provides the average diameter of the circumsphere of the nanoparticle core. TGA provides the weight fraction of organic/Au for the nanoparticles. The combination of data allows for the simple calculation of the nanoparticle average composition.
  • 32
    • 1842707763 scopus 로고    scopus 로고
    • note
    • 9/chain) can be explained by a combination of the nature of the thiol end group which has the same conformation as an alkanethiol and of the presence of the voids at the facet edges which provides extra volume for the dense PS chains.
  • 35
  • 37
    • 1842808238 scopus 로고    scopus 로고
    • note
    • Assuming a spherical thiol-solvent interface.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.