Abstract
In this paper we report on a synthesis and basic characterisation (polarising optical microscopy, differential scanning calorimetry, thermo-optical analysis) of four new liquid-crystalline compounds. These are 4''-heptylphenyl 4-[(4'-nonyloxyphenyl)diazenyl]benzoate and its three derivatives differentiating from the parent compound either by having a sulphur atom in the ester group or an oxygen atom in the heptyl chain or both these features, thus constituting a cross-section of four new groups of derivatives. We describe and compare their liquid-crystalline polymorphism and comment on the effect such structure changes have on appearing mesophases, and their temperature range.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
