Ferroelectric liquid crystals from bent-core molecules with vinyl end groups
DC Field | Value | Language |
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dc.contributor.author | Kwon, SS | - |
dc.contributor.author | Kim, TS | - |
dc.contributor.author | Lee, CK | - |
dc.contributor.author | Shin, ST | - |
dc.contributor.author | Oh, LT | - |
dc.contributor.author | Choi, EJ | - |
dc.contributor.author | Kim, SY | - |
dc.contributor.author | Chien, LC | - |
dc.date.accessioned | 2024-02-27T13:02:35Z | - |
dc.date.available | 2024-02-27T13:02:35Z | - |
dc.date.issued | 2003-03-20 | - |
dc.identifier.issn | 0253-2964 | - |
dc.identifier.issn | 1229-5949 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/kumoh/handle/2020.sw.kumoh/27030 | - |
dc.description.abstract | New banana-shaped achiral compounds, 1,3-phenylene bis [4-14-(alkenyloxy) phenyliminomethyl}benzoate]s were synthesized by varying the length of alkenyl group; their ferroelectric properties, are described. The smectic mesophases, including a switchable chiral smectic C (Sm C*) phase, were characterized by differential scanning calorimetry, polarizing optical microscopy and triangular wave method. The presence of vinyl groups at the terminals of linear side wings in the banana-shaped achiral molecules containing Schiffs base mesogen induced a decrease in melting temperature and formation of the switchable Sm C* phase in the melt. The smectic phases having the octenyloxy group such as (CH2)(6)CH=CH2 showed ferroelctric switching, and their values of spontaneous polarization on reversal of an applied electric field were 120 nC/cm(2) (X=H) and 225 nC/cm(2) (X=F), respectively. We could obtain ferroelectric phases by controlling the number of carbon atom in alkenyloxy chain of a bent-core molecule. | - |
dc.format.extent | 5 | - |
dc.language | 영어 | - |
dc.language.iso | ENG | - |
dc.publisher | KOREAN CHEMICAL SOC | - |
dc.title | Ferroelectric liquid crystals from bent-core molecules with vinyl end groups | - |
dc.type | Article | - |
dc.publisher.location | 대한민국 | - |
dc.identifier.wosid | 000182180400005 | - |
dc.identifier.bibliographicCitation | BULLETIN OF THE KOREAN CHEMICAL SOCIETY, v.24, no.3, pp 274 - 278 | - |
dc.citation.title | BULLETIN OF THE KOREAN CHEMICAL SOCIETY | - |
dc.citation.volume | 24 | - |
dc.citation.number | 3 | - |
dc.citation.startPage | 274 | - |
dc.citation.endPage | 278 | - |
dc.type.docType | Article | - |
dc.identifier.kciid | ART000912576 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.description.journalRegisteredClass | kci | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.subject.keywordPlus | CHIRAL-SYMMETRY-BREAKING | - |
dc.subject.keywordPlus | ACHIRAL MOLECULES | - |
dc.subject.keywordPlus | PHASES | - |
dc.subject.keywordAuthor | banana-shaped liquid crystal | - |
dc.subject.keywordAuthor | switchable smectic C | - |
dc.subject.keywordAuthor | spontaneous polarization | - |
dc.subject.keywordAuthor | ferroelectric properties | - |
dc.subject.keywordAuthor | bent-core molecule | - |
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