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http://hdl.handle.net/2289/5393| Title: | Dual switchable six-ring bent-core liquid crystals with azo linkages exhibiting B1 and B2 mesophases |
| Authors: | Vijaysrinivasan, M. Kannan, P. Roy, Arun |
| Keywords: | electro-optical switching; azobenzene; anticlinic-antiferroelectric |
| Issue Date: | Dec-2012 |
| Publisher: | Taylor & Francis |
| Citation: | Liquid Crystals, 2012, Vol.39, p1465 |
| Abstract: | A new series of asymmetric bent-core compounds were synthesised using azo linkages with equal as well as unequal terminal alkyl chains and their photo and electrical switching properties investigated. The mesomorphic properties were characterised using polarised optical microscopy, X-ray diffraction and differential scanning calorimetry. The lower homologues of the series of compounds show a B1 phase whereas higher homologues exhibit a B2 phase. The B2 phase shows an anticlinic-antiferroelectric switching behaviour during electro-optic measurements. The photo-switching properties of the azobenzene containing bent-core molecules were investigated using ultraviolet- visible spectroscopy. The trans to cis photo isomerisation was observed at 25 s whereas reverse processes took 14 h in chloroform. |
| Description: | Restricted Access. |
| URI: | http://hdl.handle.net/2289/5393 |
| ISSN: | 0267-8292 1366-5855 (Online) |
| Alternative Location: | http://dx.doi.org/10.1080/02678292.2012.721904 |
| Copyright: | 2012 Taylor & Francis |
| Appears in Collections: | Research Papers (LAMP) |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| 2012_LC-Vol.39_1465.pdf Restricted Access | Restricted Access | 926.81 kB | Adobe PDF | View/Open Request a copy |
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