The design and investigation of the self-assembly of dimers with two nematic phases
Ahmed, Z.; Welch, C.; Mehl, G. H.
Professor Georg Mehl G.H.Mehl@hull.ac.uk
Professor of Organic and Materials Chemistry
A series of non-symmetric dimers were synthesised containing either cyanobiphenyl or difluoroterphenyl moieties on one side and a range of long, short, bent, polar or apolar mesogens on the other side of the molecules. The dielectric anisotropy of the mesogens was varied systematically. The systems were characterised by differential scanning calorimetry (DSC), optical polarizing microscopy (OPM) and detailed X-ray diffraction (XRD) studies, both in the nematic and the Nx phase. The results are compared and structure properties relationships are discussed. A model for the assembly in the Nx phase is developed discussing Ntb structures, coaxial helices, swiss roll structures and chiral domain formation.
|Journal Article Type||Article|
|Publication Date||Sep 29, 2015|
|Publisher||Royal Society of Chemistry|
|Peer Reviewed||Peer Reviewed|
|APA6 Citation||Ahmed, Z., Welch, C., & Mehl, G. H. (2015). The design and investigation of the self-assembly of dimers with two nematic phases. RSC advances, 5(113), 93513-93521. https://doi.org/10.1039/c5ra18118f|
|Keywords||Soft Condensed Matter|
|Copyright Statement||This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence.|
|Additional Information||Copy of article first published in: RSC advances, 2015.|
This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence.
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