화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Macromolecular Research, Vol.17, No.12, 995-1002, December, 2009
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Luminescent Polynorbornene/Quantum Dot Composite Nanorods and Nanotubes Prepared from AAO Membrane Templates
Sewon Oh, Young Hyun Cho, and Kookheon Char†
  • School of Chemical and Biological Engineering, Center for Functional Polymer Thin Films, Seoul National University, Seoul 151-744, Korea
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Luminescent polynorbornene (PNB)/quantum dot (CdSe@ZnS; QD) composite nanorods and nanotubes were successfully prepared using anodic aluminum oxide (AAO) membranes of various pore sizes as templates. To protect QDs with high quantum yield from quenching during the phosphoric acid treatment used to remove the AAO templates, chemically stable and optically clear norbornene-maleic anhydride copolymers (P(NB-r-MA)) were employed as a capping agent for QDs. The amine-terminated QDs reacted with maleic anhydride moieties in P(NBr- MA) to form PNB-grafted QDs. The chemical- and photo-stability of QDs encapsulated with PNB copolymers were investigated by photoluminescence (PL) spectroscopy. By varying the pore size of the AAO templates from 40 to 380 nm, PNB/QD composite nanorods or nanotubes were obtained with a good dispersion of QDs in the PNB matrix.
Keywords:norbornene-maleic anhydride copolymer;quantum dot (QD);anodic aluminum oxide (AAO);luminescent;nanorod;nanotube
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