Accurate mass determination of melamine–formaldehyde synthetic polymers after separation on preparative HPLC

作者: Simona Lavrič , Drago Kočar , Igor Mihelič , Carl Braybrook

DOI: 10.1016/J.PORGCOAT.2014.12.010

关键词:

摘要: Abstract Separation of 57 species from solutions commercial melamines and analysis by high resolution mass spectrometry using electrospray ionisation atmospheric pressure chemical is reported. Structures for melamine-based crosslinked polymers were also confirmed with two orthogonal techniques characterisation polymers: Fourier Transform Infrared Spectrometry (FTIR) Nuclear Magnetic Resonance spectroscopy (NMR), respectively. Accurate measurements melamine–formaldehyde resin structures achieved in the ppm range, an internal calibration standard reserpine. Results within 5 ppm calculated formulae. Relative isotopic abundances [M+H] + ions evaluated different fractions. independent mobile phase used. NMR studies fractions their thermal stability up to 70 °C. Differences spectra explained change conformation it was that this a reversible process reheating samples. Stability at 70 °C MS, since when temperature ion transfer capillary MS set above decomposition occurred.

参考文章(28)
Erika Bourguet, Isabelle Correia, Bertrand Dorgeret, Gerard Chassaing, Sames Sicsic, Sandrine Ongeri, Synthesis and conformational studies of pseudopeptides containing an unsymmetrical triazine scaffold. Journal of Peptide Science. ,vol. 14, pp. 596- 609 ,(2008) , 10.1002/PSC.944
J.O. Santer, Etherified amino resins: synthesis and reactions in surface coatings applications Progress in Organic Coatings. ,vol. 12, pp. 309- 320 ,(1984) , 10.1016/0033-0655(84)80014-X
Giulia Rossi, Ioannis Giannakopoulos, Luca Monticelli, Niko K. J. Rostedt, Sakari R. Puisto, Chris Lowe, Ambrose C. Taylor, Ilpo Vattulainen, Tapio Ala-Nissila, A MARTINI Coarse-Grained Model of a Thermoset Polyester Coating Macromolecules. ,vol. 44, pp. 6198- 6208 ,(2011) , 10.1021/MA200788A
Manuela Leidl, Werner F. Huber, Clemens Schwarzinger, Andreas Endesfelder, Characterization of a Linear Melamine Formaldehyde Resin International Journal of Polymer Analysis and Characterization. ,vol. 12, pp. 301- 314 ,(2007) , 10.1080/10236660701355337
A. Saiter, C. Devallencourt, J.M. Saiter, J. Grenet, Thermodynamically “strong” and kinetically “fragile” polymeric glass exemplified by melamine formaldehyde resins European Polymer Journal. ,vol. 37, pp. 1083- 1090 ,(2001) , 10.1016/S0014-3057(00)00242-1
M.L. Scheepers, J.M. Gelan, R.A. Carleer, P.J. Adriaensens, D.J. Vanderzande, B.J. Kip, P.M. Brandts, Investigation of melamine-formaldehyde cure by Fourier transform Raman spectroscopy Vibrational Spectroscopy. ,vol. 6, pp. 55- 69 ,(1993) , 10.1016/0924-2031(93)87022-L
WR Zhang, TT Zhu, R Smith, Ch Lowe, None, An investigation on the melamine self-condensation in polyester/melamine organic coating Progress in Organic Coatings. ,vol. 69, pp. 376- 383 ,(2010) , 10.1016/J.PORGCOAT.2010.07.011
Michel W. F. Nielen, Henk J. F. M. van de Ven, Characterization of (Methoxymethyl)melamine Resin by Combined Chromatographic/Mass Spectrometric Techniques Rapid Communications in Mass Spectrometry. ,vol. 10, pp. 74- 81 ,(1996) , 10.1002/(SICI)1097-0231(19960115)10:1<74::AID-RCM448>3.0.CO;2-L