Characterization of ultra-thin polymeric films by Gas chromatography-Mass spectrometry hyphenated to thermogravimetry
| Autor: | Federico Ferrarese Lupi, Valentina Gianotti, Michele Laus, Diego Antonioli, Katia Sparnacci, Tommaso Jacopo Giammaria, Monica Ceresoli, Michele Perego, Gabriele Seguini |
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| Rok vydání: | 2014 |
| Předmět: |
Silicon
Self-assembly materials Polymers Surface Properties Analytical chemistry Mass spectrometry Biochemistry Gas Chromatography-Mass Spectrometry Analytical Chemistry Validation Copolymer Wafer chemistry.chemical_classification Chromatography Method development Organic Chemistry Ultra-thin films General Medicine Polymer Thermogravimetry-Gaschromatography-Mass spectrometry Volumetric flow rate Characterization (materials science) Thermogravimetry chemistry Gas chromatography–mass spectrometry |
| Zdroj: | Journal of chromatography 1368 (2014): 204–210. doi:10.1016/j.chroma.2014.09.073 info:cnr-pdr/source/autori:Gianotti, Valentina; Antonioli, Diego; Sparnacci, Katia; Laus, Michele; Giammaria, Tommaso Jacopo; Ceresoli, Monica; Ferrarese Lupi, Federico; Seguini, Gabriele; Perego, Michele/titolo:Characterization of ultra-thin polymeric films by Gas chromatography-Mass spectrometry hyphenated to thermogravimetry/doi:10.1016%2Fj.chroma.2014.09.073/rivista:Journal of chromatography (Print)/anno:2014/pagina_da:204/pagina_a:210/intervallo_pagine:204–210/volume:1368 |
| ISSN: | 1873-3778 |
| DOI: | 10.1016/j.chroma.2014.09.073 |
| Popis: | 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 pm 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 differences in samples featuring different thicknesses, in the 2-6 nm range, and subjected to various thermal treatments, thus indicating that this hyphenated technique could be successfully applied to the investigation of ultrathin polymer films. (C) 2014 Elsevier B.V. All rights reserved. |
| Databáze: | OpenAIRE |
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