| 학회 |
한국고분자학회 |
| 학술대회 |
2019년 봄 (04/10 ~ 04/12, 부산컨벤션센터(BEXCO)) |
| 권호 |
44권 1호 |
| 발표분야 |
고분자구조 및 물성 |
| 제목 |
Controlling Hierarchical Layered Structure of Au Nanoparticle within Block Copolymer Particles |
| 초록 |
Precisely controlling the spatial alignment of functional nanoparticles within nanostructured polymer particles is of great importance since it can open up a vast range of multifunctional hybrid materials. Here we show the formation of hierarchically stacked polystyrene coated gold nanoparticle (Au@PS) layers within the polystyrene-block-poly (4-vinylpyridine) (PS-b-P4VP) block copolymer (BCP) particles. The Au@PS preferentially incorporated into the inner PS domains, forming Au monolayers from inside out. The volume fraction of Au NPs(фAu) and the diameter of the block copolymer(DBCP) are two critical parameters to control the number of Au NP layers(N). Interestingly, the layered structures are only found when the molecular weight of the PS ligand is relatively large(6000g/mol). It is suspected that the stretchable property of long ligands make Au NPs incorporated with the PS domains to release the large entropic penalty of the inner BCP chains. |
| 저자 |
쉬멍1, 윤홍석1, Kin Liao2, 김범준1
|
| 소속 |
1한국과학기술원, 2Khalifa Univ. |
| 키워드 |
Hybrid Particle; Hierarchical Structure; Spatial Alignment
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| E-Mail |
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