CHARACTERIZATION OF THE ELECTRIC-FIELD-INDUCED ORIENTATION AND RELAXATION DYNAMICS OF LIQUID-CRYSTALS BY TIME-RESOLVED STEP-SCAN FOURIER-TRANSFORM INFRARED-SPECTROSCOPY

被引：44
作者：
SHILOV, SV
OKRETIC, S
SIESLER, HW
机构：
[1] UNIV ESSEN GESAMTHSCH,DEPT CHEM PHYS,D-45117 ESSEN,GERMANY
[2] RUSSIAN ACAD SCI,INST MACROMOLEC CPDS,ST PETERSBURG 199004,RUSSIA
来源：
VIBRATIONAL SPECTROSCOPY | 1995年 / 9卷 / 01期
关键词：
INFRARED SPECTROMETRY; LIQUID CRYSTALS; STEP-SCAN TECHNIQUE;
D O I：
10.1016/0924-2031(94)00043-G
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
In the present communication the improvement in time resolution of a Fourier transform infrared spectrometer by the implementation of the step-scan technique is demonstrated with reference to the study of the electric-field-induced orientation and relaxation phenomena of a liquid crystal. The analysis of spectra taken with 0.5 ms time resolution shows no difference in response rates upon application of the electric field for the rigid and flexible part of the liquid crystalline molecule. The results are discussed with reference to examples where such differences have been detected.
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页码：57 / 63
页数：7
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