Azo Containing Thiophene Based Prop-2-enoates for Photoalignment of a Nematic Liquid Crystal
The ability of suitably derived prop-2-enoates from 3-(thiophen-2-yl)- and 3-(thiophen-3-yl)-prop-2-enoic acid and appropriately fluorinated and non-fluorinated 4-[(4-alkoxyphenyl)diazenyl]phenols to promote excellent photoalignment of a bulk commercial nematic liquid crystal is reported. The perf...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Royal Society of Chemistry
2013
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| Online Access: | http://umpir.ump.edu.my/id/eprint/5460/ http://umpir.ump.edu.my/id/eprint/5460/1/JMC.pdf |
| _version_ | 1848817596072198144 |
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| author | Hegde, Gurumurthy Ata Alla, Rasha Matharuc, Avtar Komitov, Lachezar |
| author_facet | Hegde, Gurumurthy Ata Alla, Rasha Matharuc, Avtar Komitov, Lachezar |
| author_sort | Hegde, Gurumurthy |
| building | UMP Institutional Repository |
| collection | Online Access |
| description | The ability of suitably derived prop-2-enoates from 3-(thiophen-2-yl)- and 3-(thiophen-3-yl)-prop-2-enoic
acid and appropriately fluorinated and non-fluorinated 4-[(4-alkoxyphenyl)diazenyl]phenols to promote
excellent photoalignment of a bulk commercial nematic liquid crystal is reported. The performed study showed that the photoalignment of the liquid crystal is influenced by the number and disposition of
fluoro-substituents and the position of attachment of the terminal thiophene moiety, either 2- or 3-substituted, in the molecular structure of the alignment material. Inclusion of a lateral fluorosubstituent(s) induces an excellent photoalignment whereas the non-fluorinated counterpart tends to give an unsatisfactory alignment. 3-Substituted thiophenes give a better photoalignment than their 2-substituted isomeric counterparts. A prototype display, which contains an alignment layer made from
one of the proposed materials, possessing good alignment ability, is presented in order to demonstrate
the application potential of these materials in LCDs. |
| first_indexed | 2025-11-15T01:24:17Z |
| format | Article |
| id | ump-5460 |
| institution | Universiti Malaysia Pahang |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T01:24:17Z |
| publishDate | 2013 |
| publisher | Royal Society of Chemistry |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | ump-54602018-05-17T07:22:32Z http://umpir.ump.edu.my/id/eprint/5460/ Azo Containing Thiophene Based Prop-2-enoates for Photoalignment of a Nematic Liquid Crystal Hegde, Gurumurthy Ata Alla, Rasha Matharuc, Avtar Komitov, Lachezar QC Physics The ability of suitably derived prop-2-enoates from 3-(thiophen-2-yl)- and 3-(thiophen-3-yl)-prop-2-enoic acid and appropriately fluorinated and non-fluorinated 4-[(4-alkoxyphenyl)diazenyl]phenols to promote excellent photoalignment of a bulk commercial nematic liquid crystal is reported. The performed study showed that the photoalignment of the liquid crystal is influenced by the number and disposition of fluoro-substituents and the position of attachment of the terminal thiophene moiety, either 2- or 3-substituted, in the molecular structure of the alignment material. Inclusion of a lateral fluorosubstituent(s) induces an excellent photoalignment whereas the non-fluorinated counterpart tends to give an unsatisfactory alignment. 3-Substituted thiophenes give a better photoalignment than their 2-substituted isomeric counterparts. A prototype display, which contains an alignment layer made from one of the proposed materials, possessing good alignment ability, is presented in order to demonstrate the application potential of these materials in LCDs. Royal Society of Chemistry 2013 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/5460/1/JMC.pdf Hegde, Gurumurthy and Ata Alla, Rasha and Matharuc, Avtar and Komitov, Lachezar (2013) Azo Containing Thiophene Based Prop-2-enoates for Photoalignment of a Nematic Liquid Crystal. Journal of Materials Chemistry C, 1. pp. 3600-3605. ISSN 2050-7526. (Published) http://dx.doi.org/10.1039/C3TC00921A DOI: 10.1039/c3tc00921a |
| spellingShingle | QC Physics Hegde, Gurumurthy Ata Alla, Rasha Matharuc, Avtar Komitov, Lachezar Azo Containing Thiophene Based Prop-2-enoates for Photoalignment of a Nematic Liquid Crystal |
| title | Azo Containing Thiophene Based Prop-2-enoates for
Photoalignment of a Nematic Liquid Crystal |
| title_full | Azo Containing Thiophene Based Prop-2-enoates for
Photoalignment of a Nematic Liquid Crystal |
| title_fullStr | Azo Containing Thiophene Based Prop-2-enoates for
Photoalignment of a Nematic Liquid Crystal |
| title_full_unstemmed | Azo Containing Thiophene Based Prop-2-enoates for
Photoalignment of a Nematic Liquid Crystal |
| title_short | Azo Containing Thiophene Based Prop-2-enoates for
Photoalignment of a Nematic Liquid Crystal |
| title_sort | azo containing thiophene based prop-2-enoates for
photoalignment of a nematic liquid crystal |
| topic | QC Physics |
| url | http://umpir.ump.edu.my/id/eprint/5460/ http://umpir.ump.edu.my/id/eprint/5460/ http://umpir.ump.edu.my/id/eprint/5460/ http://umpir.ump.edu.my/id/eprint/5460/1/JMC.pdf |