| 학회 | 한국고분자학회 |
| 학술대회 | 2004년 가을 (10/08 ~ 10/09, 경북대학교) |
| 권호 | 29권 2호, p.213 |
| 발표분야 | 고분자 구조 및 물성 |
| 제목 | Exploiting Poly(dimethylsiloxane) Modified Tips to Evaluate Frictional Behavior by Friction Force Microscopy |
| 초록 | With the aim of investigating the effect of the surface properties on the friction behavior of self-assembled monolayers, we have modified tipless AFM cantilevers with a poly(dimethylsiloxane) lens. Friction coefficient using the silicon tip is strongly influenced by the mechanical properties of the substrate monolayer since hard, sharp silicon tips penetrate the surface of organic monolayers. However, the friction coefficient obtained for PDMS-modified AFM cantilever is mostly due to the surface properties of the monolayer functional end group, rather than the viscoelastic deformation of the monolayer (Figure 1). The use of PDMS tip was demonstrated as a novel means to investigate the effect of surface properties on the frictional behavior of self-assembled monolayers with various functional groups with less mechanical deformation. Figure 1. Friction force vs. applied normal load curves for the ordered (closed) and disordered (open) OTS monolayers on silicon wafers, measured using silicon (a) and PDMS (b) tips. Friction coefficients for the ordered (gray) and disordered (white) OTS monolayers (c) 참고문헌 1. X. Xiao, J. Hu, D. H. Charych, M. Salmeron, Langmuir, 12, 2 (1996). 2. V. V. Tsukruk, V. N. Bliznyuk, Langmuir, 14, 446 (1998). |
| 저자 | 조정호, 이대호, Sudip K. Pattanayek, 신화성, 조길원 |
| 소속 | 포항공과대 |
| 키워드 | Friction Force Microscopy; Self-assembled Monolayer; Poly(dimethylsiloxane); Surface Property |
