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Author

Park, Soojin
Nano-Functional Materials Lab
Research Interests
  • Block Copolymers, nanostructured materials for Lithium-Ion batteries, wearable and stretchable energy storage applications

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CdS/C60 binary nanocomposite films prepared via phase transition of PS-b-P2VP block copolymer

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Title
CdS/C60 binary nanocomposite films prepared via phase transition of PS-b-P2VP block copolymer
Author
Lee, Jung-PilKoh, Haeng-DeogShin, Won-JeongKang, Nam-GooPark, SoojinLee, Jae-Suk
Keywords
Binary nanocomposite; Block copolymer; Nanocomposites; Phase transition
Issue Date
201403
Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
Citation
JOURNAL OF COLLOID AND INTERFACE SCIENCE, v.417, no., pp.166 - 170
Abstract
We demonstrate the well-defined control of phase transition of a polystyrene-b-poly(2-vinylpyridine) (PS-b-P2VP) block copolymer from spherical micelles to lamellar structures, in which CdS and C60 nanoparticles (NPs) are selectively positioned at the P2VP domains. The CdS NPs are in situ synthesized using PS-b-P2VP block copolymer templates that are self-assembled in PS-selective solvents. The CdS-PS-b-P2VP micellar structures are transformed to lamellar phase by adjusting a solvent selectivity for both blocks. In addition, a binary system of CdS/C60 embedded in PS-b-P2VP lamellar structures (CdS/C60-PS-b-P2VP) is fabricated by embedding C60 molecules into P2VP domain though charge-transfer complexation between pyridine units of PS-b-P2VP and C60 molecules. The CdS/C60-PS-b-P2VP nanostructured films are characterized by transmission electron microscopy (TEM) and UV-Vis spectrometer.
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DOI
http://dx.doi.org/10.1016/j.jcis.2013.11.014
ISSN
0021-9797
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