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Research Article

Effect of lateral substituents on the properties of polymerisable liquid crystals with bistolane core

Xingxuan Chaia School of Materials Science and Engineering, Chang’an University, Xi’an, P. R. ChinaView further author information
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Zhaoyi Cheb State Key Laboratory of Fluorine & Nitrogen Chemicals, Xi’an, P. R. China;c Xi’an Key Laboratory of Liquid Crystals and Organic Photovoltaic Materials, Xi’an, P. R. China;d Optical and Electrical Material Center, Xi’an Modern Chemistry Research Institute, Xi’an, P. R. ChinaView further author information
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Juanli Lib State Key Laboratory of Fluorine & Nitrogen Chemicals, Xi’an, P. R. China;c Xi’an Key Laboratory of Liquid Crystals and Organic Photovoltaic Materials, Xi’an, P. R. China;d Optical and Electrical Material Center, Xi’an Modern Chemistry Research Institute, Xi’an, P. R. ChinaView further author information
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Minggang Hub State Key Laboratory of Fluorine & Nitrogen Chemicals, Xi’an, P. R. China;c Xi’an Key Laboratory of Liquid Crystals and Organic Photovoltaic Materials, Xi’an, P. R. China;d Optical and Electrical Material Center, Xi’an Modern Chemistry Research Institute, Xi’an, P. R. ChinaView further author information
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Jie Zhangb State Key Laboratory of Fluorine & Nitrogen Chemicals, Xi’an, P. R. China;c Xi’an Key Laboratory of Liquid Crystals and Organic Photovoltaic Materials, Xi’an, P. R. China;d Optical and Electrical Material Center, Xi’an Modern Chemistry Research Institute, Xi’an, P. R. ChinaView further author information
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Danyang Wanb State Key Laboratory of Fluorine & Nitrogen Chemicals, Xi’an, P. R. China;c Xi’an Key Laboratory of Liquid Crystals and Organic Photovoltaic Materials, Xi’an, P. R. China;d Optical and Electrical Material Center, Xi’an Modern Chemistry Research Institute, Xi’an, P. R. ChinaView further author information
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Lingchao Mob State Key Laboratory of Fluorine & Nitrogen Chemicals, Xi’an, P. R. China;c Xi’an Key Laboratory of Liquid Crystals and Organic Photovoltaic Materials, Xi’an, P. R. China;d Optical and Electrical Material Center, Xi’an Modern Chemistry Research Institute, Xi’an, P. R. ChinaView further author information
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Huiyun Xiaa School of Materials Science and Engineering, Chang’an University, Xi’an, P. R. ChinaView further author information
&
Jian Lib State Key Laboratory of Fluorine & Nitrogen Chemicals, Xi’an, P. R. China;c Xi’an Key Laboratory of Liquid Crystals and Organic Photovoltaic Materials, Xi’an, P. R. China;d Optical and Electrical Material Center, Xi’an Modern Chemistry Research Institute, Xi’an, P. R. ChinaCorrespondence[email protected]
View further author information
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Received 19 May 2024, Accepted 27 Jul 2024, Published online: 05 Aug 2024
 
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ABSTRACT

A new series of polymerisable liquid crystals based on bistolane core and different lateral substituent groups (F, Cl, CH3 and C2H5) were synthesised and characterised by1H-NMR and13C-NMR. The properties of these compounds were tested by DSC, POM and Abbe refractometer. The results indicate that all of these compounds display a stable nematic phase, and the introduction of lateral substituents has a significant impact on the phase behaviour and birefringence. As the size of lateral substituents gradually increases the clearing point and birefringence of the liquid crystals both show a decreasing trend. The birefringence of these new compounds reaches 0.36 ~ 0.49, which is about 2 ~ 3 times that of the commercial compounds RM257. These new polymerisable liquid crystals with extremely high birefringence provide a choice for developing devices based on planar optics.

GRAPHICAL ABSTRACT

Disclosure statement

No potential conflict of interest was reported by the author(s).

Supplementary material

Supplemental data for this article can be accessed online at https://doi.org/10.1080/02678292.2024.2386570

Additional information

Funding

This work is supported by the Key Research and Development Program of Shaanxi [Program No. 2024GX-YBXM-330].

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