| DOI | Resolve DOI: https://doi.org/10.1039/B605511G |
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| Author | Search for: Elias, A.L.; Search for: Harris, K.D.; Search for: Bastiaansen, C.W.M.; Search for: Broer, D.J.; Search for: Brett, M.J. |
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| Format | Text, Article |
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| Abstract | 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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| Publication date | 2006 |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| NRC publication | This is a non-NRC publication"Non-NRC publications" are publications authored by NRC employees prior to their employment by NRC. |
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| NRC number | 191 |
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| NPARC number | 8926394 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | a0aa0f52-69cf-4bfc-ab50-136110c7d373 |
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| Record created | 2009-04-23 |
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| Record modified | 2020-04-22 |
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