| 학회 |
한국고분자학회 |
| 학술대회 |
2009년 봄 (04/09 ~ 04/10, 대전컨벤션센터) |
| 권호 |
34권 1호 |
| 발표분야 |
기능성 고분자 |
| 제목 |
High dielectric performance of all-polymer nanocomposites induced by polyaniline nanoparticles with interparticle barrier layer |
| 초록 |
Polyaniline (PANI)-polyimide (PI) core-shell nanoparticles have been successfully prepared using a reprecipitation method. Monodisperse PANI-PI core-shell nanoparticles (~ 50 nm in diameter) were formed by precipitating PANI/NMP (N-methyl-2-pyrrolidon) solution into PAA (Poly(amic acid))/ethanol/acetone solution, followed by chemical imidization which proceeded with acetic anhydride and pyridine. The PAA served as a polymeric stabilizer and dopant, preventing the PANI particles from macroscopic aggregation. As-prepared nanoparticles were applied to all-polymer nanocomposites for high dielectic performance as fillers composed of PANI cores and PI shells. These modified percolative all-polymer composites showed a high dielectric constant. |
| 저자 |
장민철, 정현민, 김용석, 오재범, 박진영, 원종찬
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| 소속 |
한국화학(연) |
| 키워드 |
High dielectric constant; Nanocomposites; Polyaniline; Polyimide
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| E-Mail |
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