Chain-length effects on conformations of methyl methacrylate-oligomer thin films on an Au(111) substrate.
Molecular dynamics simulations were employed to investigate chain-length effects on conformations of methyl methacrylate (MMA)-oligomer thin films on an Au(111) substrate. Some observations were obtained from the present research. For short chain films, there is a sharp peak in the density profile of the MMA monomers for the adsorption region and the thin films exhibit a flattened conformation in the adsorption and the surface regions. For long chain films, however, there is no sharp peak in the whole density profile and a snake-like conformation appears in the adsorption region, which shrinks and convolutes gradually in the bulk region and even more in the surface region of the thin film.
Liao
Ming-Liang
ML
Department of Aircraft Engineering, Air Force Institute of Technology, Kaohsiung 82063, Taiwan, R.O.C.
Lee
Wen-Jay
WJ
Ju
Shin-Pon
SP
Chang
Jee-Gong
JG
Cheng
Ching-Ho
CH