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EnglishNew photo-curable polymers for 3D printing are provided, exhibiting mechanical light-responsivity upon laser irradiation. Azobenzene moieties are employed both as dyes in the 3D printing process and as active groups providing the desired light responsivity. The incorporation of azobenzene units into polymeric matrices allows a reversible and controllable change of the Young's modulus of a crosslinked micrometric structure. Depending on the temperature of operation, laser irradiation induces either a decrease (photo-softening) or an increase (photo-hardening) of the Young's modulus. Such a behaviour can be spatially controlled in order to locally modify the mechanical features of 3D printed objects such as microcantilevers.
3D printable light-responsive polymers / Roppolo, I.; Chiappone, A.; Angelini, A.; Stassi, S.; Frascella, F.; Pirri, C. F.; Ricciardi, C.; Descrovi, E.. - In: MATERIALS HORIZONS. - ISSN 2051-6347. - 4:3(2017), pp. 396-401. [10.1039/c7mh00072c]
| Titolo: | 3D printable light-responsive polymers | |
| Autori: | ||
| Data di pubblicazione: | 2017 | |
| Rivista: | MATERIALS HORIZONS | |
| Digital Object Identifier (DOI): | http://dx.doi.org/10.1039/c7mh00072c | |
| Abstract: | New photo-curable polymers for 3D printing are provided, exhibiting mechanical light-responsivity... upon laser irradiation. Azobenzene moieties are employed both as dyes in the 3D printing process and as active groups providing the desired light responsivity. The incorporation of azobenzene units into polymeric matrices allows a reversible and controllable change of the Young's modulus of a crosslinked micrometric structure. Depending on the temperature of operation, laser irradiation induces either a decrease (photo-softening) or an increase (photo-hardening) of the Young's modulus. Such a behaviour can be spatially controlled in order to locally modify the mechanical features of 3D printed objects such as microcantilevers. | |
| Full-text (pubblici): | partially_open | |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
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| 3D Printable Light Responsive Polymers.pdf | Articolo principale | Versione editoriale | Non Pubblico - Accesso privato/ristretto | Administrator Richiedi una copia |
| 3D printable light-responsive polymers_Materials Horizons_revised postprint (2).pdf | Documento in Post-print | PUBBLICO - Tutti i diritti riservati | Visibile a tuttiVisualizza/Apri |
http://hdl.handle.net/11696/63072
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