Microemulsion copolymerization of styrene-methyl methacrylate followed on line by low-resolution Raman spectroscopy

In this work, the kinetics of microemulsion copolymerization of styrene (St) and methyl methacrylate (MMA) at 60°C using dodecyltrimethylammonium bromide (DTAB) as the surfactant was followed on line by low‐resolution Raman spectroscopy. Raman spectra were taken every 30 s. Because the spectrophotom...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Veröffentlicht in:	Polymer engineering and science 2009-11, Vol.49 (11), p.2125-2131
Hauptverfasser:	Corona-Rivera, Miguel A., Flores, Jorge, Puig, Jorge E., Mendizábal, Eduardo
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Copolymerization Exact sciences and technology Microemulsions Organic polymers Physicochemistry of polymers Polymerization Polymers Preparation, kinetics, thermodynamics, mechanism and catalysts Spectrum analysis
Online-Zugang:	Volltext
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	In this work, the kinetics of microemulsion copolymerization of styrene (St) and methyl methacrylate (MMA) at 60°C using dodecyltrimethylammonium bromide (DTAB) as the surfactant was followed on line by low‐resolution Raman spectroscopy. Raman spectra were taken every 30 s. Because the spectrophotometer has low resolution, the CC peak overlaps with the St aromatic ring stretch vibration and curve deconvolution was necessary. Overall conversion obtained by Raman spectroscopy agrees with that obtained by gravimetry. Copolymer composition was determined by following the area changes of the COC bending mode peak of MMA. Compositions determined by this method agree with those measured by NMR spectroscopy. POLYM. ENG. SCI., 2009. © 2009 Society of Plastics Engineers
ISSN:	0032-3888 1548-2634
DOI:	10.1002/pen.21450