SFC/FTIR, SFC/APCI-MS and MALDI-TOF-MS for the analysis of siloxane-ethylene oxide copolymers.
Polydimethylsiloxanes (PDMSs) modified by introducing ethylene oxide units with the aim of forming sufficiently water-soluble siloxane compounds were characterized using supercritical fluid chromatography (SFC) coupled with Fourier transform infrared (FTIR) spectroscopy and atmospheric pressure chemical ionization mass spectrometry (APCI-MS), and matrix-assisted laser desorption-ionization time-of-flight mass spectrometry (MALDI-TOF-MS). SFC has a domain in analyzing oligomers. Hyphenated techniques enable elucidation of the components. Remarkable is the resolution and short analysis time of MALDI-TOF-MS. SFC also allows quantification of the basic and reaction products.
Just
U
U
Federal Institute for Materials Research and Testing (BAM), Fachgruppe VI.3, Unter den Eichen 87, 12200, Berlin, Germany. ulrich.just@bam.de
Jones
D J
DJ
Auerbach
R H
RH
Davidson
G
G
Käppler
K
K
D002845:Chromatography / Q000295:instrumentation* / Q000379:methods*; D004129:Dimethylpolysiloxanes / Q000302:isolation & purification*; D013058:Mass Spectrometry / Q000379:methods*; D008956:Models, Chemical; D011108:Polymers / Q000302:isolation & purification; D019032:Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization / Q000379:methods*; D013055:Spectrophotometry, Infrared / Q000379:methods; D013997:Time Factors
D004129:Dimethylpolysiloxanes; D011108:Polymers