| 학회 |
한국고분자학회 |
| 학술대회 |
2018년 봄 (04/04 ~ 04/06, 대전컨벤션센터) |
| 권호 |
43권 1호 |
| 발표분야 |
고분자구조 및 물성 |
| 제목 |
Dynamics of polymer thin films on graphene oxide sheets |
| 초록 |
Studies on dynamics of carbon-based nanomaterials can provide to enhancement of polymer’s physical properties. In this work, we investigated the mobility of polymer melts near graphene oxide (GO) surfaces from diffusion and dewetting dynamics. First, we used polymer thin films sandwiched between GO monolayers as a model composite system on diffusion. Polymer mobility of confined systems was analyzed a neutron reflectivity (NR) technique. Consequently, in case of diffusion, when the film is thin, diffusion coefficient decreases for polymethylmethacrylate (PMMA) thin films sandwiched between GO sheets. This is due to strongly attractive interaction between the GO and PMMA. In addition dewetting dynamics polymer thin films on GO monolayer posited the PMMA/Polystyrene (PS) interface has been studied. Dewetting prevented by GO from the NR results. The interfacial width of the PS and PMMA layers expanded by adding the GO monolayers at the interface. |
| 저자 |
조경일1, 최기인1, 김태호2, Guangcui Yuan3, Suchil K. Satija4, 구자승5
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| 소속 |
1한국원자력(연), 2한국기술교육대, 3Center for Neutron Research, 4National, 5Institute of Standards and Technology |
| 키워드 |
Polymer; Graphene oxide; dynamics; diffusion; dewetting
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| E-Mail |
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