Title

Ultraviolet Stability Of Liquid Crystals Containing Cyano And Isothiocyanato Terminal Groups

Abstract

The ultraviolet (UV) stabilities of liquid crystal compounds containing cyano (CN) and isothiocyanato (NCS) terminal groups are compared. UV exposure is found to degrade the clearing temperature, birefringence, dielectric constants and visco-elastic coefficient of the liquid crystal compounds. The measured data show that the NCS molecular structure exhibits a better UV stability than do the corresponding CN structures. Lewis resonance structures are used to explain this phenomenon.

Publication Date

11-1-2004

Publication Title

Liquid Crystals

Volume

31

Issue

11

Number of Pages

1479-1485

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1080/02678290412331298076

Socpus ID

8444232770 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/8444232770

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