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Characterization of the segmental mobility of liquid‐crystalline side‐chain polyesters by fourier‐transform infrared spectroscopy
Author(s) -
Kulinna Ch.,
Zebger I.,
Hvilsted S.,
Ramanujam P. S.,
Siesler H.W.
Publication year - 1994
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.19940830116
Subject(s) - fourier transform infrared spectroscopy , fourier transform , materials science , polyester , infrared , infrared spectroscopy , spectroscopy , side chain , polarization (electrochemistry) , analytical chemistry (journal) , optics , chemistry , polymer , organic chemistry , composite material , physics , quantum mechanics
Fourier‐Transform infrared (FTIR) polarization spectroscopy has been applied to study segmental orientation of a new class of liquid‐crystalline side‐chain (LCSC) polyesters as a function of laser irradiation. From the experimental results qualitative structural models and quantitative results in terms of an order parameter were derived. Time‐dependent investigations yielded a detailed insight into the orientational response of the mesogens, and temperature‐dependent studies were applied to monitor the erasure of the induced orientation.