화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Macromolecular Research, Vol.18, No.8, 742-746, August, 2010
DOI10.1007/s13233-010-0811-7  Export Citation
Selective Embedding of P2VP Coated Pd Nanoparticles in PS-b-P2VP Block Copolymers
Won-Jeong Shin, Ju-Young Kim, and Jae-Suk Lee†
  • Department of Nanobio Materials and Electronics and Department of Materials Science and Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju, 500-512, Korea
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Nanocomposite films with palladium nanoparticles were prepared in a block copolymer with different morphologies. Poly(2-vinylpyridine) (P2VP) and polystyrene-b-poly(2-vinylpyridine) (PS-b-P2VP) block copolymers were synthesized by living anionic polymerization using a vacuum apparatus system. To fabricate the nanocomposites, palladium nanoparticles with P2VP chains on their surfaces, which were prepared by alcohol reduction (Pd-P2VP) were introduced to the block copolymers. These palladium nanoparticles (4 nm) were embedded selectively in the P2VP domain of PS-b-P2VP. Various nanocomposites with different morphologies were obtained as the volume ratio of the block copolymer and the amount of Pd-P2VP nanoparticles. The block copolymers, nanoparticles and nanocomposites were analyzed by size exclusion chromatography (SEC), 1H nuclear magnetic resonance spectroscopy (1H NMR), UV/Vis spectroscopy (UV/Vis), and energy filtering-transmission electron microscopy (EF-TEM).
Keywords:palladium nanoparticle;block copolymer;nanocomposite;phase separation
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