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Materials 2014, 7(5), 3494-3511; doi:10.3390/ma7053494
Article

The Design and Investigation of Nanocomposites Containing Dimeric Nematogens and Liquid Crystal Gold Nanoparticles with Plasmonic Properties Showing a Nematic-Nematic Phase Transition (Nu-Nx/Ntb)

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Received: 12 March 2014; in revised form: 11 April 2014 / Accepted: 17 April 2014 / Published: 30 April 2014
(This article belongs to the Special Issue Liquid Crystals)
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Abstract: The construction of liquid crystal compositions consisting of the dimeric liquid crystal, CB_C9_CB (cyanobiphenyl dimer = 1'',9''-bis(4-cyanobiphenyl-4'-yl)nonane), and the range of nematic systems is explored. The materials include a laterally functionalized monomer, which was used to construct a phase diagram with CB_C9_CB, as well as one laterally linked dimer liquid crystal material and two liquid crystal gold nanoparticle (LC-Au-NPs) systems. For the Au-NP-LCs, the NP diameters were varied between ~3.3 nm and 10 nm. Stable mixtures that exhibit a nematic-nematic phase transition are reported and were investigated by POM (polarizing optical microscopy), DSC (differential scanning calorimetry) and X-ray diffraction studies.
Keywords: nanocomposite; liquid crystal; nematic-nematic; phase diagram; dimer; siloxane; mixtures; nanoparticles; plasmonic; gold nanocomposite; liquid crystal; nematic-nematic; phase diagram; dimer; siloxane; mixtures; nanoparticles; plasmonic; gold
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Tamba, M.-G.; Yu, C.H.; Tang, B.J.; Welch, C.; Kohlmeier, A.; Schubert, C.P.; Mehl, G.H. The Design and Investigation of Nanocomposites Containing Dimeric Nematogens and Liquid Crystal Gold Nanoparticles with Plasmonic Properties Showing a Nematic-Nematic Phase Transition (Nu-Nx/Ntb). Materials 2014, 7, 3494-3511.

AMA Style

Tamba M-G, Yu CH, Tang BJ, Welch C, Kohlmeier A, Schubert CP, Mehl GH. The Design and Investigation of Nanocomposites Containing Dimeric Nematogens and Liquid Crystal Gold Nanoparticles with Plasmonic Properties Showing a Nematic-Nematic Phase Transition (Nu-Nx/Ntb). Materials. 2014; 7(5):3494-3511.

Chicago/Turabian Style

Tamba, Maria-Gabriela; Yu, Chih H.; Tang, Bai J.; Welch, Christopher; Kohlmeier, Alexandra; Schubert, Christopher P.; Mehl, Georg H. 2014. "The Design and Investigation of Nanocomposites Containing Dimeric Nematogens and Liquid Crystal Gold Nanoparticles with Plasmonic Properties Showing a Nematic-Nematic Phase Transition (Nu-Nx/Ntb)." Materials 7, no. 5: 3494-3511.


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