scholarly journals Effective Reaction Monitoring of Intermediates by ATR-IR Spectroscopy Utilizing Fibre Optic Probes

Author(s):  
Daniel Lumpi ◽  
Christian Braunshier
2012 ◽  
Vol 48 (18) ◽  
pp. 2451 ◽  
Author(s):  
Daniel Lumpi ◽  
Christoph Wagner ◽  
Matthias Schöpf ◽  
Ernst Horkel ◽  
Georg Ramer ◽  
...  

2014 ◽  
Vol 6 (12) ◽  
pp. 4305-4311 ◽  
Author(s):  
Jiguang Li ◽  
Jun Gao ◽  
Hua Li ◽  
Xiaofeng Yang ◽  
Yu Liu

The synthesis mechanism of 4-amino-3,5-dimethyl pyrazole was investigated using in-line FT-IR spectroscopy combined with a Fast-ICA algorithm.


2007 ◽  
Vol 11 (1) ◽  
pp. 94-97 ◽  
Author(s):  
Clemens B. Minnich ◽  
Pascal Buskens ◽  
H. Christian Steffens ◽  
Patrick S. Bäuerlein ◽  
Leonid N. Butvina ◽  
...  

2015 ◽  
Vol 7 (10) ◽  
pp. 4152-4158 ◽  
Author(s):  
Hua Li ◽  
Jun Gao ◽  
Hongsheng Tang ◽  
Jiguang Li ◽  
Tianlong Zhang ◽  
...  

Investigating the synthetic mechanism of 3,5-diamino-1,2,4-triazole by using fibre optic ATR-IR spectroscopy combined with kernel independent component analysis.


Author(s):  
Gudrun A. Hutchins

In order to optimize the toughening effect of elastomers in engineering polymers, it is necessary to characterize the size, morphology and dispersion of the specific elastomer within the polymer matrix. For unsaturated elastomers such as butadiene or isoprene, staining with osmium tetroxide is a well established procedure. The residual carbon-carbon double bond in these materials is the reactive site and forms a 1,2-dilato complex with the OsO4. Incorporation of osmium tetroxide into the elastomer not only produces sufficient contrast for TEM, but also crosslinks the elastomer sufficiently so that ultramicrotomy can be accomplished at room temperature with minimal distortion.Blends containing saturated elastomers such as butyl acrylate (BA) and ethylene propylene diene monomer (EPDM) cannot be stained directly with OsO4 because effective reaction sites such as C=C or -NH2 are not available in sufficient number. If additional reaction sites can be introduced selectively into the elastomer by a chemical reaction or the absorption of a solvent, a modified, two-step osmium staining procedure is possible.


1987 ◽  
Vol 134 (5) ◽  
pp. 291 ◽  
Author(s):  
K.T.V. Grattan ◽  
J.D. Manwell ◽  
S.M.L. Sim ◽  
C.A. Willson

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