The azimuthal anchoring energy at the interface between the nematic liquid crystal 5CB and a photosensitive polymer(para-PVCN-F)is measured using a high accuracy reflectometric method. The anchoring well is represented by the Rapini-Papoular function and the azimuthal anchoring energy coefficient W goes linearly to zero at the clearing point. Qualitative and quantitative observations show that the PVCN-F films favor a reduced surface nematic order. The gliding of the easy axis is also investigated.
Measurements of the azimuthal anchoring energy at the interface between a nematic liquid crystal and photosensitive polymers
FAETTI, SANDRO;
2004-01-01
Abstract
The azimuthal anchoring energy at the interface between the nematic liquid crystal 5CB and a photosensitive polymer(para-PVCN-F)is measured using a high accuracy reflectometric method. The anchoring well is represented by the Rapini-Papoular function and the azimuthal anchoring energy coefficient W goes linearly to zero at the clearing point. Qualitative and quantitative observations show that the PVCN-F films favor a reduced surface nematic order. The gliding of the easy axis is also investigated.File in questo prodotto:
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