| DOI | Trouver le DOI : https://doi.org/10.1039/B605511G |
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| Auteur | Rechercher : Elias, A.L.; Rechercher : Harris, K.D.; Rechercher : Bastiaansen, C.W.M.; Rechercher : Broer, D.J.; Rechercher : Brett, M.J. |
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| Format | Texte, Article |
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| Résumé | We have investigated the properties of thermally-responsive, patterned liquid crystalline polymers as their dimensions are scaled to a size suitable for use in microelectromechanical systems. All samples were fabricated using surface alignment and photopatterning techniques that can be used to produce integrated devices anchored on a substrate. The thermomechanical properties of free-standing macroscopic samples with varying concentration of crosslinking molecules were investigated in order to optimize the thermal response of the material. It was found that samples containing 12% crosslinker were able to expand by up 19% when heated. The thermomechanical properties of surface-anchored films were also investigated, and it was found that by employing a polymerized cholesteric structure of the liquid crystalline units a thermal expansion of up to 11% could be achieved when the sample was heated to 200 °C. Patternability was demonstrated using a simple photopatterning process that was used to fabricate samples consisting of lines of cholesteric material on a bare substrate, or alternating regions of liquid crystalline polymer in the isotropic and cholesteric phases. Actuation of these films was also demonstrated. |
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| Date de publication | 2006 |
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| Dans | |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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| Publication du CNRC | Cette publication n’est pas du CNRCCe sont des publications qui ont été rédigées par un auteur du CNRC, mais avant que celui-ci soit employé du CNRC. |
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| Numéro du CNRC | 191 |
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| Numéro NPARC | 8926394 |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | a0aa0f52-69cf-4bfc-ab50-136110c7d373 |
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| Enregistrement créé | 2009-04-23 |
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| Enregistrement modifié | 2020-04-22 |
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