Colorful cholesteric liquid crystal polymer network patterns prepared using cholesteric liquid crystal inks

IF 5.4 1区化学 Q2 CHEMISTRY, MULTIDISCIPLINARY

GIANT Pub Date : 2024-02-02 DOI:10.1016/j.giant.2024.100244

Jinghua Zhao, Ming Zhang, Yongxing Guo, Wei Liu, Yi Li, Yonggang Yang

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Abstract

Colorful cholesteric liquid crystal polymer network (CLCN) patterns can be applied for decoration and anti-counterfeiting. Herein, the CLC inks were prepared using an acrylate liquid crystal, chiral dopants and a photoinitiator. Full-color CLCN patterns were able to be printed out using only two CLC inks by changing their volume ratio. A structure with a gradient helical pitch was identified between different colors. For anti-counterfeiting, the color patterns composed of opposite-handed CLCNs were also printed. A helical-nonhelical-helical structure was identified at the interface. In addition, CLCN patterns with a grating structure were also prepared. The results shown here not only give us a better understanding the cholesteric structure, but also lay the foundations for the applications of CLCN patterns in the fields of decoration and anti-counterfeiting.

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使用胆甾液晶墨水制备彩色胆甾液晶聚合物网络图案

彩色胆甾液晶聚合物网络（CLCN）图案可用于装饰和防伪。本文使用丙烯酸酯液晶、手性掺杂剂和光引发剂制备了 CLC 油墨。只需改变两种 CLC 油墨的体积比，就能打印出全彩的 CLCN 图案。不同颜色之间的螺旋间距渐变结构被识别出来。为了防伪，还印制了由反手 CLCN 组成的彩色图案。在界面上发现了一种螺旋-非螺旋-螺旋结构。此外，还制备了具有光栅结构的 CLCN 图案。这些结果不仅让我们更好地了解了胆甾结构，还为 CLCN 图案在装饰和防伪领域的应用奠定了基础。

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来源期刊

GIANT Multiple-

CiteScore

8.50

自引率

8.60%

发文量

审稿时长

42 days

期刊介绍： Giant is an interdisciplinary title focusing on fundamental and applied macromolecular science spanning all chemistry, physics, biology, and materials aspects of the field in the broadest sense. Key areas covered include macromolecular chemistry, supramolecular assembly, multiscale and multifunctional materials, organic-inorganic hybrid materials, biophysics, biomimetics and surface science. Core topics range from developments in synthesis, characterisation and assembly towards creating uniformly sized precision macromolecules with tailored properties, to the design and assembly of nanostructured materials in multiple dimensions, and further to the study of smart or living designer materials with tuneable multiscale properties.