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Colour responsive smart polymers and biopolymers films through nanodispersion of organic chromophores and metal particles (Articolo in rivista)
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- Colour responsive smart polymers and biopolymers films through nanodispersion of organic chromophores and metal particles (Articolo in rivista) (literal)
- Anno
- 2011-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1016/j.porgcoat.2010.12.015 (literal)
- Alternative label
Andrea Pucci a,b,c, Giacomo Ruggeri a,c,d; Simona Bronco d,c; Francesca Signori d,c;
Filippo Donati a; Marco Bernabò a; Francesco Ciardelli a,d,* (2011)
Colour responsive smart polymers and biopolymers films through nanodispersion of organic chromophores and metal particles
in Progress in organic coatings (Print)
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Andrea Pucci a,b,c, Giacomo Ruggeri a,c,d; Simona Bronco d,c; Francesca Signori d,c;
Filippo Donati a; Marco Bernabò a; Francesco Ciardelli a,d,* (literal)
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- Scopus (literal)
- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- a Department of Chemistry and Industrial Chemistry, University of Pisa, via Risorgimento 35, I-56126 Pisa, Italy
b CNR NANO Institute Nanoscience-CNR, piazza San Silvestro 12, I-56127 Pisa, Italy
c INSTM, c/o Department of Chemistry, and Industrial Chemistry, University of Pisa, via Risorgimento 35, I-56126 Pisa, Italy
d CNR-IPCF Istituto per i Processi Chimico Fisici, via Moruzzi 1, I-56124 Pisa, Italy (literal)
- Titolo
- Colour responsive smart polymers and biopolymers films through nanodispersion of organic chromophores and metal particles (literal)
- Abstract
- Molecular optical brighteners incorporated into filmable polymers to a very low extent from 0.05 to
0.5 wt.% by melt-processing, provide materials which show a well-defined excimer emission by increasing
dye concentration flanked by a characteristic change of the luminescent properties of the films. Then,
the original colour of the film, provided by the radiative transitions of the isolated dye molecules, may be
restored after polymer stretching that promotes the aggregates break-up and the alignment of the single
chromophore molecules along the stretching direction thus providing an easy detectable colour change.
The approach can be extended to polymer blends allowing to obtain a wide range of films with different
structure and performances in colour changes determined by external stimuli. Also, nanostructured
polymer films with unusual and anisotropic optical properties can be obtained through the dispersion
of gold and silver nanoparticles. The metal nanoparticles can be produced directly inside the polymer
matrix by a photo-reduction process. Both organic chromophores and metal particles nanostructured
systems can be used to prepare \"smart\" coating materials with a broad type of structural characteristics
and capable to detect and stores external stimuli of different origin and under different conditions. (literal)
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