1970
DOI: 10.1007/bf00610540
|View full text |Cite
|
Sign up to set email alerts
|

Influence of extensive thermal polymerization upon the Raman spectra of vinyl monomers (styrene)

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
1
1

Citation Types

0
2
0

Year Published

2013
2013
2016
2016

Publication Types

Select...
3

Relationship

0
3

Authors

Journals

citations
Cited by 3 publications
(2 citation statements)
references
References 6 publications
0
2
0
Order By: Relevance
“…Raman bands at 1005, 1033, 1185, 1200, 1321, 1417, 1498, 1600, and 1629 cm –1 due to the styrene adsorption were observed at room temperature after introducing styrene in Ar while some of the ceria bands (345, 556, 592, and 1714 cm –1 ) were attenuated by the styrene. The observed bands could be assigned to C–H bending of an romatic ring (1185, 1200 cm –1 ), the CH– and CH 2 deformation (1321, and 1417 cm –1 ) C–C stretch of the aromatic ring (1005, 1033, 1498, 1600 cm –1 ), and vinyl CC stretches (1629 cm –1 ). It is significant that the CC stretching at 1629 cm –1 disappeared at temperatures above 200 °C because this suggests polymerization. Meanwhile, the C–C stretches of aromatic rings (1005, 1498 cm –1 ) increased, the peak at 1600 cm –1 shifted to 1595 cm –1 , and a new band at 1447 cm –1 appeared.…”
Section: Resultsmentioning
confidence: 99%
“…Raman bands at 1005, 1033, 1185, 1200, 1321, 1417, 1498, 1600, and 1629 cm –1 due to the styrene adsorption were observed at room temperature after introducing styrene in Ar while some of the ceria bands (345, 556, 592, and 1714 cm –1 ) were attenuated by the styrene. The observed bands could be assigned to C–H bending of an romatic ring (1185, 1200 cm –1 ), the CH– and CH 2 deformation (1321, and 1417 cm –1 ) C–C stretch of the aromatic ring (1005, 1033, 1498, 1600 cm –1 ), and vinyl CC stretches (1629 cm –1 ). It is significant that the CC stretching at 1629 cm –1 disappeared at temperatures above 200 °C because this suggests polymerization. Meanwhile, the C–C stretches of aromatic rings (1005, 1498 cm –1 ) increased, the peak at 1600 cm –1 shifted to 1595 cm –1 , and a new band at 1447 cm –1 appeared.…”
Section: Resultsmentioning
confidence: 99%
“…[3][4][5] Other spectroscopic techniques like nuclear magnetic resonance [6] or fluorescence [7,8] have been reported for monitoring polymerization reactions either in homogenous or in heterogeneous reaction media but mainly at the laboratory scale. It has been shown that Raman spectroscopy allowed in situ determination of monomer consumption in free radical polymerization reactions carried out with different processes: several examples have been reported for bulk polymerization and [9][10][11][12][13][14][15] emulsion polymerization [16][17][18] while there is only one example for miniemulsion process. [19] Most of the reported studies monitored the progress of polymerization reaction by continuously following the decrease of a peak corresponding to the double bond of monomers.…”
Section: Introductionmentioning
confidence: 99%