Composition of ultrathin binary polymer brushes by thermogravimetry-gas chromatography-mass spectrometry

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

doi:10.1007/s00216-016-9380-8

Composition of ultrathin binary polymer brushes by thermogravimetry-gas chromatography-mass spectrometry

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

Research output: Contribution to journal › Article › peer-review

Abstract

In the present paper, a reliable and rugged thermogravimetry-gas chromatography-mass spectrometry (TGA-GC-MS) method was developed to determine the composition of ultrathin films consisting of binary blends of functional polystyrene (PS) and polymethylmethacrylate (PMMA) grafted to a silicon wafer. A general methodology will be given to address the composition determination problem for binary or even multicomponent polymer brush systems using the PS/PMMA-based samples as a paradigmatic example. In this respect, several distinct tailor-made materials were developed to ensure reliable calibration and validation stages. The analytical method was tested on unknown samples to follow the composition evolution in PS/PMMA brushes during the grafting reaction. A preferential grafting of the PMMA was revealed in full agreement with its preferential interaction with the SiO₂ polar surface.

Original language	English
Pages (from-to)	3155-3163
Number of pages	9
Journal	Analytical and Bioanalytical Chemistry
Volume	408
Issue number	12
DOIs	https://doi.org/10.1007/s00216-016-9380-8
Publication status	Published - 1 May 2016

Keywords

Composition determination
Method validation
Polymer brushes
Thermogravimetry-gas chromatography-mass spectrometry
Ultrathin film analysis

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10.1007/s00216-016-9380-8

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title = "Composition of ultrathin binary polymer brushes by thermogravimetry-gas chromatography-mass spectrometry",

abstract = "In the present paper, a reliable and rugged thermogravimetry-gas chromatography-mass spectrometry (TGA-GC-MS) method was developed to determine the composition of ultrathin films consisting of binary blends of functional polystyrene (PS) and polymethylmethacrylate (PMMA) grafted to a silicon wafer. A general methodology will be given to address the composition determination problem for binary or even multicomponent polymer brush systems using the PS/PMMA-based samples as a paradigmatic example. In this respect, several distinct tailor-made materials were developed to ensure reliable calibration and validation stages. The analytical method was tested on unknown samples to follow the composition evolution in PS/PMMA brushes during the grafting reaction. A preferential grafting of the PMMA was revealed in full agreement with its preferential interaction with the SiO2 polar surface.",

keywords = "Composition determination, Method validation, Polymer brushes, Thermogravimetry-gas chromatography-mass spectrometry, Ultrathin film analysis",

author = "Diego Antonioli and Katia Sparnacci and Michele Laus and \{Ferrarese Lupi\}, Federico and Giammaria, \{Tommaso Jacopo\} and Gabriele Seguini and Monica Ceresoli and Michele Perego and Valentina Gianotti",

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doi = "10.1007/s00216-016-9380-8",

language = "English",

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T1 - Composition of ultrathin binary polymer brushes by thermogravimetry-gas chromatography-mass spectrometry

AU - Antonioli, Diego

AU - Sparnacci, Katia

AU - Laus, Michele

AU - Ferrarese Lupi, Federico

AU - Giammaria, Tommaso Jacopo

AU - Seguini, Gabriele

AU - Ceresoli, Monica

AU - Perego, Michele

AU - Gianotti, Valentina

PY - 2016/5/1

Y1 - 2016/5/1

N2 - In the present paper, a reliable and rugged thermogravimetry-gas chromatography-mass spectrometry (TGA-GC-MS) method was developed to determine the composition of ultrathin films consisting of binary blends of functional polystyrene (PS) and polymethylmethacrylate (PMMA) grafted to a silicon wafer. A general methodology will be given to address the composition determination problem for binary or even multicomponent polymer brush systems using the PS/PMMA-based samples as a paradigmatic example. In this respect, several distinct tailor-made materials were developed to ensure reliable calibration and validation stages. The analytical method was tested on unknown samples to follow the composition evolution in PS/PMMA brushes during the grafting reaction. A preferential grafting of the PMMA was revealed in full agreement with its preferential interaction with the SiO2 polar surface.

AB - In the present paper, a reliable and rugged thermogravimetry-gas chromatography-mass spectrometry (TGA-GC-MS) method was developed to determine the composition of ultrathin films consisting of binary blends of functional polystyrene (PS) and polymethylmethacrylate (PMMA) grafted to a silicon wafer. A general methodology will be given to address the composition determination problem for binary or even multicomponent polymer brush systems using the PS/PMMA-based samples as a paradigmatic example. In this respect, several distinct tailor-made materials were developed to ensure reliable calibration and validation stages. The analytical method was tested on unknown samples to follow the composition evolution in PS/PMMA brushes during the grafting reaction. A preferential grafting of the PMMA was revealed in full agreement with its preferential interaction with the SiO2 polar surface.

KW - Composition determination

KW - Method validation

KW - Polymer brushes

KW - Thermogravimetry-gas chromatography-mass spectrometry

KW - Ultrathin film analysis

UR - https://www.scopus.com/pages/publications/84957942204

U2 - 10.1007/s00216-016-9380-8

DO - 10.1007/s00216-016-9380-8

M3 - Article

SN - 1618-2642

VL - 408

SP - 3155

EP - 3163

JO - Analytical and Bioanalytical Chemistry

JF - Analytical and Bioanalytical Chemistry

IS - 12

ER -

Composition of ultrathin binary polymer brushes by thermogravimetry-gas chromatography-mass spectrometry

Abstract

Keywords

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