Phase behavior modulation of liquid crystalline molecules can be addressed by structural modification at molecular level. Starting from a rigid rod-like core reduction of the symmetry or increase of the steric hindrance by different substituents generally reduces the clearing temperature. Similar approaches can be explored to modulate the properties of liquid crystalline networks (LCNs)-shape-changing materials employed as actuators in many fields. Depending on the application, the polymer properties have to be adjusted in terms of force developed under stimuli, kinetics of actuation, elasticity, and resistance to specific loads. In this work, the crosslinker modification at molecular level is explored towards the optimization of LCN properties as light-responsive artificial muscles. The synthesis and characterization of photopolymerizable crosslinkers, bearing different lateral groups on the aromatic core is reported. Such molecules are able to strongly modulate the material mechanical properties, such as kinetics and maximum tension under light actuation, opening up to interesting materials for biomedical applications.

The Role of Crosslinker Molecular Structure on Mechanical and Light-Actuation Properties in Liquid Crystalline Networks / Donato S.; Martella D.; Salzano de Luna M.; Arecchi G.; Querceto S.; Ferrantini C.; Sacconi L.; Brient P.-L.; Chatard C.; Graillot A.; Wiersma D.S.; Parmeggiani C.. - In: MACROMOLECULAR RAPID COMMUNICATIONS. - ISSN 1022-1336. - ELETTRONICO. - 44:(2023), pp. 2200958.0-2200958.0. [10.1002/marc.202200958]

The Role of Crosslinker Molecular Structure on Mechanical and Light-Actuation Properties in Liquid Crystalline Networks

Donato S.;Martella D.;Arecchi G.;Querceto S.;Ferrantini C.;Sacconi L.;Wiersma D. S.;Parmeggiani C.
2023

Abstract

Phase behavior modulation of liquid crystalline molecules can be addressed by structural modification at molecular level. Starting from a rigid rod-like core reduction of the symmetry or increase of the steric hindrance by different substituents generally reduces the clearing temperature. Similar approaches can be explored to modulate the properties of liquid crystalline networks (LCNs)-shape-changing materials employed as actuators in many fields. Depending on the application, the polymer properties have to be adjusted in terms of force developed under stimuli, kinetics of actuation, elasticity, and resistance to specific loads. In this work, the crosslinker modification at molecular level is explored towards the optimization of LCN properties as light-responsive artificial muscles. The synthesis and characterization of photopolymerizable crosslinkers, bearing different lateral groups on the aromatic core is reported. Such molecules are able to strongly modulate the material mechanical properties, such as kinetics and maximum tension under light actuation, opening up to interesting materials for biomedical applications.
2023
44
0
0
Goal 7: Affordable and clean energy
Donato S.; Martella D.; Salzano de Luna M.; Arecchi G.; Querceto S.; Ferrantini C.; Sacconi L.; Brient P.-L.; Chatard C.; Graillot A.; Wiersma D.S.; Parmeggiani C.
File in questo prodotto:
File Dimensione Formato  
The role of crosslinker molecular structure.docx

Accesso chiuso

Tipologia: Pdf editoriale (Version of record)
Licenza: Open Access
Dimensione 6.3 MB
Formato Microsoft Word XML
6.3 MB Microsoft Word XML   Richiedi una copia
Macromolecular Rapid Communications - 2023 - Donato - The Role of Crosslinker Molecular Structure on Mechanical and.pdf

accesso aperto

Tipologia: Pdf editoriale (Version of record)
Licenza: Open Access
Dimensione 4.61 MB
Formato Adobe PDF
4.61 MB Adobe PDF

I documenti in FLORE sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/1356510
Citazioni
  • ???jsp.display-item.citation.pmc??? 0
  • Scopus 2
  • ???jsp.display-item.citation.isi??? 2
social impact