| 학회 |
한국고분자학회 |
| 학술대회 |
2015년 봄 (04/08 ~ 04/10, 대전컨벤션센터) |
| 권호 |
40권 1호 |
| 발표분야 |
고분자구조 및 물성 |
| 제목 |
Hexagonally perforated lamellar phase of block copolymer as a host template to facilitate delicate nanoparticle localization |
| 초록 |
Metallic or semiconducting nanoparticles embedded within a thin film polymer matrix provide versatile functionalities of nanocomposite ranging from plasmonics, photovoltaics and sensors. However, macrophase separation or random dispersion of NPs limit the possible access to optimal properties required for various nanodevice applications. Block copolymers have promisingly shown periodic sub-20nm structures by microphase separation of different polymer blocks. Here, we report the unusual and delicate positioning of guest Au nanoparticles in the host block copolymer microdomain. Poly(dimethylsiloxane-b-styrene) is blended with 10-12nm sized Au nanoparticles whose ligands are exchanged to thiol terminated polystyrene in order to ensure polystyrene domain selectivity of the nanoparticles. The block copolymer-nanoparticle blend provides one step fabrication process as the blend film self assembles into desired morphology of nanocomposite through single solvothermal annealing. |
| 저자 |
남태원, 정재원, 최민재, 김용주, 정연식
|
| 소속 |
한국과학기술원 |
| 키워드 |
Block copolymer; Nanoparticle; microphase separation
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| E-Mail |
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