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Polymeric materials are widely employed to build up tunable nanomasks for nano-patterning technologies. Ultrathin polymer layers are involved in this process. A Thermo Gravimetric Analysis–Mass Spectrometry (TGA-GC-MS) method was optimised, validated and successfully applied to investigate the thermal behavior of ultrathin poly(styrene-r-methylmethacrylate) random copolymer layers P(S-r-MMA) grafted to a silicon wafer surface. The interface between TGA and MS is highly versatile since many instrumental parameters (i.e. loop volumes, pulsed sampling frequencies, acquisition modalities, carrier gases, flow rates) can be easily tuned. Samples featuring substantial scale difference, i.e. bulk materials, thick films (few μm thickness), thin and ultrathin films (few nm thickness) can be analyzed without any instrumental modification or sample pretreatments. The TGA-GC-MS analysis was used to highlight subtle …
Publication date: 
14 Nov 2014

Valentina Gianotti, Diego Antonioli, Katia Sparnacci, Michele Laus, Tommaso Jacopo Giammaria, Monica Ceresoli, Federico Ferrarese Lupi, Gabriele Seguini, Michele Perego

Biblio References: 
Volume: 1368 Pages: 204-210
Journal of Chromatography A