TY - JOUR
T1 - The structure of PMDA-PDA polyimide monolayers adsorbed on gold surfaces
AU - Keil, M.
AU - Paggel, J. J.
AU - Schedel-Niedrig, Th
AU - Yokoyama, S.
AU - Sotobayashi, H.
AU - Bradshaw, A. M.
N1 - Funding Information:
We are greatly indebtedt o Professor M. Kaki-moto and ProfessorY . Imai lbr providingu s with the precursorm aterialand, acknowledgefi nancialsup-port from the GermanF ederalM inistryof Education, Science, Research and Technology( BMBF) under contractN o. 05 5EBFXB as well as from the Fonds der ChemischenIn dustrie.
PY - 1995/11
Y1 - 1995/11
N2 - Monolayers of the rod-like PMDA-PDA polyimide adsorbed on flame-annealed polycrystalline gold films have been studied with scanning tunnelling microscopy (STM) and X-ray absorption spectroscopy. The polyimide layer was deposited using the Langmuir-Blodgett preparation technique of Imai and Kakimoto. STM measurements in air showed that the polyimide chains were aligned along the 〈211〉 directions of the {111}-oriented single crystal regions of the surface. Although {111}-oriented areas were barely identifiable in the corresponding UHV experiments, aligned polymer chains were also observed over large areas of the surface. X-ray absorption measurements on the latter samples at the nitrogen K-edge showed a preferential orientation of the aromatic ring planes.
AB - Monolayers of the rod-like PMDA-PDA polyimide adsorbed on flame-annealed polycrystalline gold films have been studied with scanning tunnelling microscopy (STM) and X-ray absorption spectroscopy. The polyimide layer was deposited using the Langmuir-Blodgett preparation technique of Imai and Kakimoto. STM measurements in air showed that the polyimide chains were aligned along the 〈211〉 directions of the {111}-oriented single crystal regions of the surface. Although {111}-oriented areas were barely identifiable in the corresponding UHV experiments, aligned polymer chains were also observed over large areas of the surface. X-ray absorption measurements on the latter samples at the nitrogen K-edge showed a preferential orientation of the aromatic ring planes.
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U2 - 10.1016/0169-4332(95)00178-6
DO - 10.1016/0169-4332(95)00178-6
M3 - Article
AN - SCOPUS:8444242066
SN - 0169-4332
VL - 90
SP - 377
EP - 381
JO - Applied Surface Science
JF - Applied Surface Science
IS - 3
ER -