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An hyphenated method based on thermal gravimetric, gas chromatographic and mass spectrometric analyses (TGA-GC–MS) is proposed for the quantitative analysis of diethylphosphate-end capped polymers with varying chain length, in bulk and as ultra thin film. The method fully calibrated and validated, revealed a powerful and affordable tool in the determination of the amount of phosphorous in polymeric samples but also it allows the determination of the number of repeating units per chain end.Compared to the common techniques, namely NMR spectroscopy and ICP-MS, no sample pretreatments are required. Consequently, polymeric films supported on inert substrates can be directly analyzed. The quantitative calibration, obtained for bulk materials, was demonstrated to be accurate also for films of different thickness. In this frame, the method revealed highly sensitive thus allowing the phosphorous …
Publication date: 
1 Nov 2017

Valentina Gianotti, Diego Antonioli, Katia Sparnacci, Michele Laus, Claudio Cassino, Francesco Marsano, Gabriele Seguini, Michele Perego

Biblio References: 
Volume: 128 Pages: 238-245
Journal of analytical and applied pyrolysis