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JoVE Journal

Chemistry

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High-Contrast and Fast Photorheological Switching of a Twist-Bend Nematic Liquid Crystal

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06:24 min

October 31st, 2019

October 31st, 2019

6,314 Views

0:05

Title

0:33

Rubbed Surface Preparation

1:43

Liquid Crystal (LC) Cell Preparation

2:55

Polarizing Optical Microscopy & Photorheological Measurement

4:22

Results: Representative Chemical, Rheological, & Photodynamic Characteristics of a Liquid Crystal Nonsymmetric Dimer

5:46

Conclusion

Transcript

This protocol explains how to characterize the viscoelastic stretching properties of liquid crystals, and it helps to answer key questions about how to develop new photorheological materials. The main advantage of this method is that the rheologic

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This protocol demonstrates the preparation of a photorheological material that exhibits a solid phase, various liquid crystalline phases, and an isotropic liquid phase by increasing temperature. Presented here are methods for measuring the structure-viscoelasticity relationship of the material.

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