Directing Polymorphism in the Helical Nanofilament Phase.
Chemistry
; 27(24): 7108-7113, 2021 Apr 26.
Article
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| MEDLINE
| ID: mdl-33464673
ABSTRACT
Herein, it is reported that the polymorphism in the helical nanofilament (HNF, B4 ) liquid-crystalline phase depends on the fabrication methods, that is, UV-driven formation and template-assisted self-assembly in the nanoconfined geometry. As a result, uniaxially oriented HNFs with different helical structures were obtained, in which generation of the twisted-ribbon and cylindrical-ribbon polymorphs showed that even the molecular lattice has a different orientation. The detailed structures were directly observed by SEM and grazing-incidence X-ray diffraction with synchrotron radiation. The resultant polymorphs could be used in chiro-optical applications due to the capability for fine control of the helical structures.
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MEDLINE
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En
Revista:
Chemistry
Asunto de la revista:
QUIMICA
Año:
2021
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Article