In situ Analysis of a High-Temperature Cure Reaction in Real Time Using Modulated Fiber-Optic FT-Raman Spectroscopy

1999 ◽  
Vol 53 (6) ◽  
pp. 682-686 ◽  
Author(s):  
Jeffrey F. Aust ◽  
John B. Cooper ◽  
Kent L. Wise ◽  
Brian J. Jensen
Keyword(s):  
Raman Spectroscopy ◽  
High Temperature ◽  
Real Time ◽  
Fiber Optic ◽  
In Situ Analysis ◽  
Cure Reaction ◽  
Ft Raman Spectroscopy ◽  
Ft Raman

On-Line Monitoring of Airborne Chemistry in Levitated Nanodroplets:  In Situ Synthesis and Application of SERS-Active Ag−Sols for Trace Analysis by FT-Raman Spectroscopy

2003 ◽  
Vol 75 (9) ◽  
pp. 2166-2171 ◽  
Author(s):  
Nicolae Leopold ◽  
Michael Haberkorn ◽  
Thomas Laurell ◽  
Johan Nilsson ◽  
Josefa R. Baena ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Trace Analysis ◽  
In Situ Synthesis ◽  
Ft Raman Spectroscopy ◽  
On Line ◽  
Ft Raman

Precise Determination of Percent Cure of Epoxide Polymers and Composites via Fiber-Optic Raman Spectroscopy and Multivariate Analysis

1997 ◽  
Vol 51 (2) ◽  
pp. 247-252 ◽  
Author(s):  
Jeffrey F. Aust ◽  
Karl S. Booksh ◽  
Christopher M. Stellman ◽  
Richard S. Parnas ◽  
Michael L. Myrick
Keyword(s):  
Raman Spectroscopy ◽  
Multivariate Analysis ◽  
Real Time ◽  
Fiber Optic ◽  
Precise Determination ◽  
Probe Design ◽  
Epoxide Polymers ◽  
Time Determination

A method for real-time determination of the percent cure of epoxies via in situ fiber-optic Raman spectroscopy has been developed. This method utilizes a probe design developed for real-time monitoring of polymer curing and multivariate analysis to interpret the data and determine percent cure. This method was demonstrated to be reliable to ±0.54% of cure in laboratory samples over a 50–99% cure range. A preliminary study measuring cure percentage in an industrial, glass-reinforced composite has been shown to be reliable to ±0.82% in the 40–90% cure range.

Novel Environmental Control Chamber for FT-Raman Spectroscopy: Study of in situ Phase Change of Sulfur

1997 ◽  
Vol 51 (1) ◽  
pp. 101-107 ◽  
Author(s):  
H. G. M. Edwards ◽  
D. W. Farwell ◽  
J. M. C. Turner ◽  
A. C. Williams
Keyword(s):  
Raman Spectroscopy ◽  
Phase Change ◽  
Monoclinic Phase ◽  
Environmental Control ◽  
Atmospheric Conditions ◽  
Spectroscopy Study ◽  
Ft Raman Spectroscopy ◽  
The Stability ◽  
Ft Raman

The adaptation and construction of an environmental chamber suitable for FT-Raman spectroscopy is described for the recording of Raman spectra of specimens at temperatures from 25 to 125 °C while exposed to different controlled synthetic atmospheric conditions. Test spectra were obtained from sulfur to illustrate the stability and applications of the system. The α rhombic/β monoclinic phase change in sulfur was monitored as a function of time, and bands sensitive to this phase change have been identified.

In situ determination of proportion of cell types in wood by FT-Raman spectroscopy

1999 ◽  
pp. 545-546
Author(s):  
Toshihiro Ona ◽  
Tetsuya Sonoda ◽  
Kazuya Ito ◽  
Masaru Shibata ◽  
Yoshisato Ootake ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Cell Types ◽  
Ft Raman Spectroscopy ◽  
Ft Raman

Use of in situ FT-Raman spectroscopy to study the kinetics of the transformation of carbamazepine polymorphs

2004 ◽  
Vol 36 (2) ◽  
pp. 335-340 ◽  
Author(s):  
Laura E. O’Brien ◽  
Peter Timmins ◽  
Adrian C. Williams ◽  
Peter York
Keyword(s):  
Raman Spectroscopy ◽  
Ft Raman Spectroscopy ◽  
Kinetics Of ◽  
Ft Raman
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