1 Ocak 2013 Dergi makalesi Açık Erişim

Kalayci, Ozlem A.; Duygulu, Ozgur; Hazer, Baki

Citation Style Language JSON

{
  "DOI": "10.1007/s11051-012-1355-x", 
  "abstract": "This study refers to the synthesis and characterization of a novel organic/inorganic hybrid nanocomposite material containing cadmium sulfide (CdS) nanoparticles. For this purpose, a series of polypropylene (PP)-g-polyethylene glycol (PEG), PP-g-PEG comb-type amphiphilic graft copolymers were synthesized. PEGs with Mn = 400, 2000, 3350, and 8000 Da were used and the graft copolymers obtained were coded as PPEG400, PPEG2000, PPEG3350, and PPEG8000. CdS nanoparticles were formed in tetra-hydrofuran solution of PP-g-PEG amphiphilic comb-type copolymer by the reaction between aqueous solutions of Na2S and Cd(CH3COO)(2) simultaneously. Micelle formation of PPEG2000 comb-type amphiphilic graft copolymer in both solvent/non-solvent (petroleum ether-THF) by transmission electron microscopy (TEM). The optical characteristics, size morphology, phase analysis, and dispersion of CdS nanoparticles embedded in PPEG400, PPEG2000, PPEG3350, and PPEG8000 comb-type amphiphilic graft copolymer micelles were determined by high resolution TEM (HRTEM), energy dispersive spectroscopy, UV-vis spectroscopy, and fluorescence emission spectroscopy techniques. The aggregate size of PPEG2000-CdS is between 10 and 50 nm; however, in the case of PPEG400-CdS, PPEG3350-CdS, and PPEG8000-CdS samples, it is up to approximately 100 nm. The size of CdS quantum dots in the aggregates for PPEG2000 and PPEG8000 samples was observed as 5 nm by HRTEM analysis, and this result was also supported by UV-vis absorbance spectra and fluorescence emission spectra.", 
  "author": [
    {
      "family": "Kalayci", 
      "given": " Ozlem A."
    }, 
    {
      "family": "Duygulu", 
      "given": " Ozgur"
    }, 
    {
      "family": "Hazer", 
      "given": " Baki"
    }
  ], 
  "container_title": "JOURNAL OF NANOPARTICLE RESEARCH", 
  "id": "89401", 
  "issue": "1", 
  "issued": {
    "date-parts": [
      [
        2013, 
        1, 
        1
      ]
    ]
  }, 
  "title": "Optical characterization of CdS nanoparticles embedded into the comb-type amphiphilic graft copolymer", 
  "type": "article-journal", 
  "volume": "15"
}