Siesler, H.w.; Zebger, I.; Kulinna, Ch; Okretic, S.; Shilov, S.; Hoffmann, U.:
Segmental mobility of liquid crystals and liquid-crystalline polymers under external fields: characterization by Fourier-Transform Infrared Polarization Spectroscopy.
1999
In: Modern Polymer Spectroscopy, S. 33 - 85
Artikel/Aufsatz in Zeitschrift1999Chemie
Titel:
Segmental mobility of liquid crystals and liquid-crystalline polymers under external fields: characterization by Fourier-Transform Infrared Polarization Spectroscopy.
Autor(in):
Siesler, H.w.LSF; Zebger, I.; Kulinna, Ch; Okretic, S.; Shilov, S.; Hoffmann, U.LSF
Erscheinungsjahr
1999

Abstract:

A review, with .apprx.121 refs., on use of FTIR polarization spectroscopy methods in studies of motion of chain segments, including side chains of LCPs under external perturbation. Studies include structure-dependent alignment of side-chain LC polyacrylates on anisotropic surfaces; elec. field-induced orientation and relaxation of a liq. crystal, a side-chain LCP, and a LC guest-host system; reorientation dynamics of a ferroelec. side-chain LCP in a polarity-switched elec. field; alignment of side-chain LC polyesters under laser irradn.; shear-induced orientation of chiral smectic LC polysiloxanes; and orientation mechanism of a liq. single crystal elastomer during cyclic deformation and recovery are studied. Theor. principles and instrumentation for FTIR polarization spectroscopy are described.