DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, CK | - |
dc.contributor.author | Kwon, SS | - |
dc.contributor.author | Kim, TS | - |
dc.contributor.author | Choi, EJ | - |
dc.contributor.author | Shin, ST | - |
dc.contributor.author | Zin, WC | - |
dc.contributor.author | Kim, DC | - |
dc.contributor.author | Kim, JH | - |
dc.contributor.author | Chien, LC | - |
dc.date.accessioned | 2016-04-01T09:16:37Z | - |
dc.date.available | 2016-04-01T09:16:37Z | - |
dc.date.created | 2009-03-05 | - |
dc.date.issued | 2003-12 | - |
dc.identifier.issn | 0267-8292 | - |
dc.identifier.other | 2003-OAK-0000010430 | - |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/29782 | - |
dc.description.abstract | New chiral bent-core mesogens, derivatives of 1,3-phenylene bis[4-(alkanyloxyphenylimino-methyl)benzoate], were synthesized with variation of a substituent (X = F, Cl); their antiferro-electric properties are described. The mesomorphic and switching properties were characterized by differential scanning calorimetry, polarizing optical microscopy, triangular wave method, and X-ray diffractometry in the small and wide angle regions. The presence of chiral tails at the terminals of side wings in the bent-core molecules induced a decrease in transition temperature and formation of the switchable SmC* phase in the melt. In addition, the introduction of a lateral halogen substituent in the Schiff's base moiety prevented the regular stacking of the molecules, resulting in the formation of very complex optical textures. The smectic phase with F-substituted PBFDOB and Cl-substituted PBCDOB showed layer spacings of 39 and 38.5 Angstrom, respectively, corresponding to the end-to-end distance of molecules with a bent conformation. Significantly, the smectic phases of PBFDOB and PBCDOB exhibited a period of 179.5 and 131 Angstrom, respectively, compatible with a helical structure with periodicity about 4.6 and 3.4 times the layer spacings. | - |
dc.description.statementofresponsibility | X | - |
dc.language | English | - |
dc.publisher | TAYLOR & FRANCIS LTD | - |
dc.relation.isPartOf | LIQUID CRYSTALS | - |
dc.subject | SMECTIC LIQUID-CRYSTALS | - |
dc.subject | MOLECULES | - |
dc.subject | PHASE | - |
dc.title | Synthesis and properties of new materials with banana-shaped achiral cores and chiral end groups | - |
dc.type | Article | - |
dc.contributor.college | 신소재공학과 | - |
dc.identifier.doi | 10.1080/02678290310001621930 | - |
dc.author.google | Lee, CK | - |
dc.author.google | Kwon, SS | - |
dc.author.google | Kim, TS | - |
dc.author.google | Choi, EJ | - |
dc.author.google | Shin, ST | - |
dc.author.google | Zin, WC | - |
dc.author.google | Kim, DC | - |
dc.author.google | Kim, JH | - |
dc.author.google | Chien, LC | - |
dc.relation.volume | 30 | - |
dc.relation.issue | 12 | - |
dc.relation.startpage | 1401 | - |
dc.relation.lastpage | 1406 | - |
dc.contributor.id | 10133873 | - |
dc.relation.journal | LIQUID CRYSTALS | - |
dc.relation.index | SCI급, SCOPUS 등재논문 | - |
dc.collections.name | Journal Papers | - |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | LIQUID CRYSTALS, v.30, no.12, pp.1401 - 1406 | - |
dc.identifier.wosid | 000186906500004 | - |
dc.date.tcdate | 2019-02-01 | - |
dc.citation.endPage | 1406 | - |
dc.citation.number | 12 | - |
dc.citation.startPage | 1401 | - |
dc.citation.title | LIQUID CRYSTALS | - |
dc.citation.volume | 30 | - |
dc.contributor.affiliatedAuthor | Zin, WC | - |
dc.identifier.scopusid | 2-s2.0-345307797 | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.wostc | 17 | - |
dc.type.docType | Article | - |
dc.subject.keywordPlus | SMECTIC LIQUID-CRYSTALS | - |
dc.subject.keywordPlus | MOLECULES | - |
dc.subject.keywordPlus | PHASE | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Crystallography | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Crystallography | - |
dc.relation.journalResearchArea | Materials Science | - |
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