There are no files associated with this item.
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.citation.endPage | 6411 | - |
dc.citation.number | 24 | - |
dc.citation.startPage | 6399 | - |
dc.citation.title | CHEMISTRY-A EUROPEAN JOURNAL | - |
dc.citation.volume | 24 | - |
dc.contributor.author | Park, Geonhui | - |
dc.contributor.author | Goossens, Karel | - |
dc.contributor.author | Shin, Tae Joo | - |
dc.contributor.author | Bielawski, Christopher W. | - |
dc.date.accessioned | 2023-12-21T20:50:19Z | - |
dc.date.available | 2023-12-21T20:50:19Z | - |
dc.date.created | 2018-05-18 | - |
dc.date.issued | 2018-04 | - |
dc.description.abstract | Although dicyanamide (i.e., [N(CN)(2)](-)) has been commonly used to obtain low-viscosity, halogen-free, room-temperature ionic liquids, liquid-crystalline salts containing such anions have remained virtually unexplored. Here we report a series of amphiphilic dicyanamide salts that, depending on their structures and compositions, adopt smectic, columnar, or bicontinuous cubic thermotropic liquid-crystalline mesophases, even at room temperature in some cases. Their thermal properties were explored by polarized light optical microscopy, differential scanning calorimetry, thermogravimetric analysis (including evolved gas analysis), and variable-temperature synchrotron X-ray diffraction. Comparison of the thermal phase characteristics of these new liquid-crystalline salts featuring "V-shaped" [N(CN)(2)](-) anions with those of structural analogues containing [SCN](-), [BF4](-), [PF6](-), or [CF3SO3](-) anions indicated that not only the size of the counterion but also its shape should be considered in the development of mesomorphic salts. Collectively, these discoveries may be expected to facilitate the design of thermotropic ionic liquid crystals that form inverted-type bicontinuous cubic and other sophisticated liquid-crystalline phases. | - |
dc.identifier.bibliographicCitation | CHEMISTRY-A EUROPEAN JOURNAL, v.24, no.24, pp.6399 - 6411 | - |
dc.identifier.doi | 10.1002/chem.201705794 | - |
dc.identifier.issn | 0947-6539 | - |
dc.identifier.scopusid | 2-s2.0-85045329760 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/24150 | - |
dc.identifier.url | https://onlinelibrary.wiley.com/doi/abs/10.1002/chem.201705794 | - |
dc.identifier.wosid | 000430914100016 | - |
dc.language | 영어 | - |
dc.publisher | WILEY-V C H VERLAG GMBH | - |
dc.title | Dicyanamide Salts that Adopt Smectic, Columnar, or Bicontinuous Cubic Liquid-Crystalline Mesophases | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | dicyanamide | - |
dc.subject.keywordAuthor | ionic liquids | - |
dc.subject.keywordAuthor | liquid crystals | - |
dc.subject.keywordAuthor | mesophases | - |
dc.subject.keywordAuthor | self-assembly | - |
dc.subject.keywordPlus | RAY-POWDER DIFFRACTOMETRY | - |
dc.subject.keywordPlus | TEMPERATURE IONIC LIQUIDS | - |
dc.subject.keywordPlus | PENDANT MESOGENIC GROUPS | - |
dc.subject.keywordPlus | VOLUME-BASED APPROACH | - |
dc.subject.keywordPlus | ALKYL CHAIN-LENGTH | - |
dc.subject.keywordPlus | X-RAY | - |
dc.subject.keywordPlus | IMIDAZOLIUM SALTS | - |
dc.subject.keywordPlus | SELF-ORGANIZATION | - |
dc.subject.keywordPlus | AMPHIPHILIC ZWITTERIONS | - |
dc.subject.keywordPlus | REACTIONS TRIMERIZATION | - |
Items in Repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Tel : 052-217-1404 / Email : scholarworks@unist.ac.kr
Copyright (c) 2023 by UNIST LIBRARY. All rights reserved.
ScholarWorks@UNIST was established as an OAK Project for the National Library of Korea.