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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 33, Number 9
BKCSDE 33(9)
September 20, 2012 

 
Title

Preparation and Characterizations of C60/Polystyrene Composite Particle Containing Pristine C60 Clusters

Author
Jung-Woon Kim, Kun-Ji Kim, Sooyeon Park, Kwang-Un Jeong*, Myong-Hoon Lee*
Keywords
Fullerene, Polystyrene, Nanoparticle, Emulsion polymerization
Abstract
Fullerene/polystyrene (C60/PS) nano particle was prepared by using emulsion polymerization. Styrene and fullerene were emulsified in aqueous media in the presence of poly(N-vinyl pyridine) as an emulsion stabilizer, and polymerization was initiated by water soluble radical initiator, potassium persulfate. The obtained nano particles have an average diameter in the range of 400-500 nm. The fullerene contents in the nano particle can be controlled up to 15 wt % by varying the feed ratio, which was confirmed by themogravimetric analysis (TGA) and elemental analysis (EA). The structure and morphologies of the C60/PS nano particles were examined by various analytical techniques such as dynamic light scattering (DLS), scanning electron microscope (SEM), transmission electron microscope (TEM), electron diffraction (ED) pattern, X-ray powder diffraction (XRD), and UV spectroscopy. Unlike conventional C60/PS particles initiated by organic free radical initiators, in which the fullerene is copolymerized forming a covalent bond with styrene monomer, the prepared C60/PS nano particles contain pristine fullerene as secondary particles homogeneously distributed in the polystyrene matrix.
Page
2966 - 2970
Full Text
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