Infrared Spectroscopy of High Polymers |
Contents
Characteristic Features of Polymer Spectra | 1 |
1957 | 3 |
B Dichroism in Polymers | 8 |
Copyright | |
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absorption bands absorption intensity amorphous angle axial orientation beam calculated CH2 group chain axis Chapter Chem components corresponding cos² cosets coupled oscillators crystal crystalline determined dichroism direction discussed distribution function draw ratio electric vector end groups equation example expected factor group film fixed ends force constant free ends frequency branches given group representations group vibrations infinitely long infrared infrared-active intensity ellipsoid interaction irreducible representations isotactic Krimm line group linear m₁ m₂ molecular normal vibrations obtained one-dimensional optical densities orientation parameter oriented sample perpendicular Phys planar orientation planar zig-zag chain plane point group point masses polarization polyethylene polymer chain Polymer Sci radiation Raman Raman-active repeat unit rotation Section selection rules shown in Fig sin² space group spectra spectrum symmetry elements symmetry operation totally symmetric transition translation group type of orientation unit cell values vinyl polymer wavelength xy-plane z-axis