Author/Authors :
Hara، Masahiko نويسنده , , Ito، Eisuke نويسنده , , Fujimori، Atsuhiro نويسنده , , Araki، Tohru نويسنده , , Nakahara، Hiroo نويسنده , , Seki، Kazuhiko نويسنده , , Matsuie، Noritaka نويسنده , , Ishii، Hisao نويسنده , , Ouchi، Yukio نويسنده ,
Abstract :
The molecular orientation in multilayer films of fluorinated comb polymers with various side-chain lengths can be characterized by near-edge X-ray absorption fine structures (NEXAFS) spectroscopy at the C K- and F K-edges. The spectra are found to change significantly with respect to the incidence angles of the soft X-rays and the number of layers in organized molecular films as well as chemical modifications such as fluorocarbon side-chain lengths, the atoms at the (omega)-position of the fluorocarbon side-chains, and (alpha)-methyl substituents. Analysis of these changes of the NEXAFS spectra provides useful information about the average molecular orientation in the X- and Z-types of mono- and multilayer films of the fluorinated comb polymers on solids.
