Cover Picture: A Route to Self‐Organized Honeycomb Microstructured Polystyrene Films and Their Chemical Characterization by ToF‐SIMS Imaging (Adv. Funct. Mater. 7/2007)

Abstract The cover shows a composition of different characterization images of an auto‐organized polystyrene film obtained through breath‐figure imprinting, as reported by Sami Yunus and co‐workers on p. 1079. Water‐droplet condensation, represented as a synthetic perspective image (top), is respons...

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Published in:Advanced Functional Materials
Main Authors: Yunus, S., Delcorte, A., Poleunis, C., Bertrand, P., Bolognesi, A., Botta, C.
Format: Article in Journal/Newspaper
Language:English
Published: Wiley 2007
Subjects:
Online Access:http://dx.doi.org/10.1002/adfm.200790024
https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fadfm.200790024
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spelling crwiley:10.1002/adfm.200790024 2024-06-02T08:14:05+00:00 Cover Picture: A Route to Self‐Organized Honeycomb Microstructured Polystyrene Films and Their Chemical Characterization by ToF‐SIMS Imaging (Adv. Funct. Mater. 7/2007) Yunus, S. Delcorte, A. Poleunis, C. Bertrand, P. Bolognesi, A. Botta, C. 2007 http://dx.doi.org/10.1002/adfm.200790024 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fadfm.200790024 https://onlinelibrary.wiley.com/doi/pdf/10.1002/adfm.200790024 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Advanced Functional Materials volume 17, issue 7 ISSN 1616-301X 1616-3028 journal-article 2007 crwiley https://doi.org/10.1002/adfm.200790024 2024-05-03T11:40:29Z Abstract The cover shows a composition of different characterization images of an auto‐organized polystyrene film obtained through breath‐figure imprinting, as reported by Sami Yunus and co‐workers on p. 1079. Water‐droplet condensation, represented as a synthetic perspective image (top), is responsible for ordered microstructuring during film formation. The following perspectives are taken from SEM and from three negative ToF‐SIMS images that allow deduction of the surface chemical composition. The background is an SEM picture of a polydimethylsiloxane molding of the self‐organized film. A new type of polymer compound that allows the formation of highly ordered microstructured films by casting from a volatile solvent in the presence of humidity, and its characterization by ToF‐SIMS (time‐of‐flight secondary‐ion mass spectrometry) are presented. A honeycomb structure is obtained by activation of 2,2,6,6‐tetramethyl‐1‐piperidinyloxyl (TEMPO)‐terminated polystyrene (PS) with p ‐toluenesulfonic acid (PTSA). The mechanism of this activation reaction, leading to a more polar PS termination, is deduced from simple experiments and supported by ToF‐SIMS characterization. Positive and negative ToF‐SIMS imaging allows different chemical regions correlating to the film morphology to be distinguished. This new, straightforward activation process, together with ToF‐SIMS chemical imaging, provides a better understanding of the phenomena underlying the formation of these films by directly linking the role of polar terminations to the microscale self‐organization. This new method, transposable to other organic acids, suggests interesting new perspectives in the field of self‐organized chemical and topographical patterning. Article in Journal/Newspaper sami Wiley Online Library Advanced Functional Materials 17 7
institution Open Polar
collection Wiley Online Library
op_collection_id crwiley
language English
description Abstract The cover shows a composition of different characterization images of an auto‐organized polystyrene film obtained through breath‐figure imprinting, as reported by Sami Yunus and co‐workers on p. 1079. Water‐droplet condensation, represented as a synthetic perspective image (top), is responsible for ordered microstructuring during film formation. The following perspectives are taken from SEM and from three negative ToF‐SIMS images that allow deduction of the surface chemical composition. The background is an SEM picture of a polydimethylsiloxane molding of the self‐organized film. A new type of polymer compound that allows the formation of highly ordered microstructured films by casting from a volatile solvent in the presence of humidity, and its characterization by ToF‐SIMS (time‐of‐flight secondary‐ion mass spectrometry) are presented. A honeycomb structure is obtained by activation of 2,2,6,6‐tetramethyl‐1‐piperidinyloxyl (TEMPO)‐terminated polystyrene (PS) with p ‐toluenesulfonic acid (PTSA). The mechanism of this activation reaction, leading to a more polar PS termination, is deduced from simple experiments and supported by ToF‐SIMS characterization. Positive and negative ToF‐SIMS imaging allows different chemical regions correlating to the film morphology to be distinguished. This new, straightforward activation process, together with ToF‐SIMS chemical imaging, provides a better understanding of the phenomena underlying the formation of these films by directly linking the role of polar terminations to the microscale self‐organization. This new method, transposable to other organic acids, suggests interesting new perspectives in the field of self‐organized chemical and topographical patterning.
format Article in Journal/Newspaper
author Yunus, S.
Delcorte, A.
Poleunis, C.
Bertrand, P.
Bolognesi, A.
Botta, C.
spellingShingle Yunus, S.
Delcorte, A.
Poleunis, C.
Bertrand, P.
Bolognesi, A.
Botta, C.
Cover Picture: A Route to Self‐Organized Honeycomb Microstructured Polystyrene Films and Their Chemical Characterization by ToF‐SIMS Imaging (Adv. Funct. Mater. 7/2007)
author_facet Yunus, S.
Delcorte, A.
Poleunis, C.
Bertrand, P.
Bolognesi, A.
Botta, C.
author_sort Yunus, S.
title Cover Picture: A Route to Self‐Organized Honeycomb Microstructured Polystyrene Films and Their Chemical Characterization by ToF‐SIMS Imaging (Adv. Funct. Mater. 7/2007)
title_short Cover Picture: A Route to Self‐Organized Honeycomb Microstructured Polystyrene Films and Their Chemical Characterization by ToF‐SIMS Imaging (Adv. Funct. Mater. 7/2007)
title_full Cover Picture: A Route to Self‐Organized Honeycomb Microstructured Polystyrene Films and Their Chemical Characterization by ToF‐SIMS Imaging (Adv. Funct. Mater. 7/2007)
title_fullStr Cover Picture: A Route to Self‐Organized Honeycomb Microstructured Polystyrene Films and Their Chemical Characterization by ToF‐SIMS Imaging (Adv. Funct. Mater. 7/2007)
title_full_unstemmed Cover Picture: A Route to Self‐Organized Honeycomb Microstructured Polystyrene Films and Their Chemical Characterization by ToF‐SIMS Imaging (Adv. Funct. Mater. 7/2007)
title_sort cover picture: a route to self‐organized honeycomb microstructured polystyrene films and their chemical characterization by tof‐sims imaging (adv. funct. mater. 7/2007)
publisher Wiley
publishDate 2007
url http://dx.doi.org/10.1002/adfm.200790024
https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fadfm.200790024
https://onlinelibrary.wiley.com/doi/pdf/10.1002/adfm.200790024
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op_source Advanced Functional Materials
volume 17, issue 7
ISSN 1616-301X 1616-3028
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op_doi https://doi.org/10.1002/adfm.200790024
container_title Advanced Functional Materials
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