Time-resolved Fourier transform infrared/attenuated total reflection spectroscopy for the measurement of molecular diffusion in polymers

2003 ◽  
Vol 42 (2) ◽  
pp. 365-365 ◽  
Author(s):  
Yossef A. Elabd ◽  
Marco Giacinti Baschetti ◽  
Timothy A. Barbari
Keyword(s):  
Fourier Transform ◽  
Molecular Diffusion ◽  
Fourier Transform Infrared ◽  
Total Reflection ◽  
Attenuated Total Reflection ◽  
Reflection Spectroscopy ◽  
Time Resolved ◽  
Diffusion In Polymers

Electric-Field-Induced Reorientation of Liquid Crystalline p-Cyanophenyl-p-n-Alkylbenzoates: A Time-Resolved Study by Fourier Transform Infrared Transmission and Attenuated Total Reflection Spectroscopy

2003 ◽  
Vol 57 (5) ◽  
pp. 499-505 ◽  
Author(s):  
E. Klimov ◽  
M. Fuelleborn ◽  
H. W. Siesler
Keyword(s):  
Fourier Transform ◽  
Electric Field ◽  
Liquid Crystalline ◽  
External Perturbation ◽  
Fourier Transform Infrared ◽  
Surface Region ◽  
Total Reflection ◽  
Attenuated Total Reflection ◽  
Infrared Transmission ◽  
Time Resolved

Time-resolved polarization Fourier transform infrared (FT-IR) transmission and attenuated total reflection (ATR) spectroscopy were applied to investigate the reorientation phenomena of the three members of the homologous series of nematic liquid crystalline p-cyanophenyl-p-n-alkylbenzoates 6CPB, 7CPB, and 10CPB under the external perturbation of an electric field. In conjunction with a newly constructed measurement cell, this method allowed us to differentiate the response of the LC system in the surface layer and in the bulk of the cell at different temperatures and voltages. The relaxation time of the LC molecules close to the wall of the cell was found to be shorter than in the bulk. However, at a field strength of 7 V, the initial orientation in the bulk preceeds the analogous process in the surface region.

Detection of Citrus Huanglongbing by Fourier Transform Infrared—Attenuated Total Reflection Spectroscopy

2010 ◽  
Vol 64 (1) ◽  
pp. 100-103 ◽  
Author(s):  
Samantha A. Hawkins ◽  
Bosoon Park ◽  
Gavin H. Poole ◽  
Timothy Gottwald ◽  
William R. Windham ◽  
...  
Keyword(s):  
Fourier Transform ◽  
Fourier Transform Infrared ◽  
Total Reflection ◽  
Attenuated Total Reflection ◽  
Reflection Spectroscopy ◽  
Citrus Huanglongbing
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