Twist impeded self-diffusion in a cholesteric |
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| Authors: | Zvi Yaniv Giuseppe Chidichimo Nuno Vaz JW Doane |
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| Institution: | Liquid Crystal Institute and Department of Physics, Kent State University, Kent, OH 44242, USA |
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| Abstract: | Molecular self-diffusion along the pitch axis of a twisted nematic is measured by its motional averaging effect on the deuterium quadrupole interaction. The diffusion constant is found to decrease as the pitch length is decreased. This result is explained by simple phenomenological considerations and is consistent with published viscosity measurements. |
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