http://www.cnr.it/ontology/cnr/individuo/prodotto/ID54348
A route to self-organized honeycomb microstructured polystyrene films and their chemical characterization by ToF-SIMS imaging (Articolo in rivista)
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- Label
- A route to self-organized honeycomb microstructured polystyrene films and their chemical characterization by ToF-SIMS imaging (Articolo in rivista) (literal)
- Anno
- 2007-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1002/adfm.200600470 (literal)
- Alternative label
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Yunus S.; Delcorte A.; Poleunis C.; Bertrand P.; Bolognesi A.; Botta C. (literal)
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- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- S. Yunus, A. Delcorte, C. Poleunis, P. Bertrand, Laboratoire de Physico-Chimie et de Physique des Materiaux, Universite Catholique de Louvain, Belgium
A. Bolognesi, C. Botta. ISMAC CNR (literal)
- Titolo
- A route to self-organized honeycomb microstructured polystyrene films and their chemical characterization by ToF-SIMS imaging (literal)
- Abstract
- 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 (literal)
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