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Supramolecular Polymerization in Liquid Crystalline Media: Toward Modular Synthesis of Multifunctional Core-Shell Columnar Liquid Crystals.
Yano, Keiichi; Hanebuchi, Takahiro; Zhang, Xu-Jie; Itoh, Yoshimitsu; Uchida, Yoshiaki; Sato, Takuro; Matsuura, Keisuke; Kagawa, Fumitaka; Araoka, Fumito; Aida, Takuzo.
Afiliación
  • Yano K; Department of Chemistry and Biotechnology, School of Engineering , The University of Tokyo , 7-3-1 Hongo , Bunkyo-ku , Tokyo 113-8656 , Japan.
  • Hanebuchi T; Department of Chemistry and Biotechnology, School of Engineering , The University of Tokyo , 7-3-1 Hongo , Bunkyo-ku , Tokyo 113-8656 , Japan.
  • Zhang XJ; Department of Chemistry and Biotechnology, School of Engineering , The University of Tokyo , 7-3-1 Hongo , Bunkyo-ku , Tokyo 113-8656 , Japan.
  • Itoh Y; Department of Chemistry and Biotechnology, School of Engineering , The University of Tokyo , 7-3-1 Hongo , Bunkyo-ku , Tokyo 113-8656 , Japan.
  • Uchida Y; Division of Chemical Engineering, Graduate School of Engineering Science , Osaka University , 1-3 Machikaneyama-cho , Toyonaka , Osaka 560-8531 , Japan.
  • Sato T; RIKEN Center for Emergent Matter Science , 2-1 Hirosawa , Wako , Saitama 351-0198 , Japan.
  • Matsuura K; RIKEN Center for Emergent Matter Science , 2-1 Hirosawa , Wako , Saitama 351-0198 , Japan.
  • Kagawa F; RIKEN Center for Emergent Matter Science , 2-1 Hirosawa , Wako , Saitama 351-0198 , Japan.
  • Araoka F; Department of Applied Physics, School of Engineering , The University of Tokyo , 7-3-1 Hongo , Bunkyo-ku , Tokyo 113-8656 , Japan.
  • Aida T; RIKEN Center for Emergent Matter Science , 2-1 Hirosawa , Wako , Saitama 351-0198 , Japan.
J Am Chem Soc ; 141(25): 10033-10038, 2019 06 26.
Article en En | MEDLINE | ID: mdl-31140278
Recently, we discovered a modular synthetic approach for constructing core-shell columnar liquid crystals (LCs) by supramolecular polymerization in LC media. In the present work, we successfully confirmed that our modular synthetic approach has the potential to be widely extended to the development of multifunctional columnar LCs. Herein, we constructed the first core-shell columnar LC that was proved to be orientable by both electric and magnetic fields by the supramolecular polymerization of NODiskNH* in a nematic LC medium of 4-cyano-4'-pentyloxybiphenyl (5OCB). NODiskNH* is a chiral benzenetricarboxamide derivative bearing 2,2,6,6-tetramethylpiperidine 1-oxyl termini, which is known to form a helical supramolecular polymer via a triple hydrogen-bonding array. NODiskNH* alone formed a hydrogen-bonded liquid phase without any long-range structural ordering. However, a nematic LC medium of 5OCB, when mixed with NODiskNH* at a molar ratio of 1:3, underwent a "structural order-increasing" mesophase transition, affording an optically active single LC phase with a hexagonally arranged core-shell columnar geometry in a temperature range from 113 to 51 °C. Unprecedentedly, this core-shell columnar LC can orient its columns both electrically and magnetically, resulting in unidirectional columnar ordering.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: J Am Chem Soc Año: 2019 Tipo del documento: Article País de afiliación: Japón Pais de publicación: Estados Unidos
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: J Am Chem Soc Año: 2019 Tipo del documento: Article País de afiliación: Japón Pais de publicación: Estados Unidos