EAN: 9783030998615

SPRINGERBRIEFS IN PHYSICS MOLECULAR THEORY OF...

This book provides a didactic derivation of the main theories of thermotropic and lyotropic
liquid crystals  revealing the common molecular-theoretic framework that underpins both
theories. This unified context will help young researchers in coming to grips with the basics
of the simplest of liquid crystals  being uniaxial nematic liquid crystals  easing them into
the intricacies of more complex forms of such materials irrespective of whether they are
thermotropic or lyotropic. The coverage provides a theoretical understanding of the phase
behaviour  that is  what drives molecules and particles to spontaneously align themselves  as
well as an appreciation of the role of entropy  energy and so on. The focus here is on the main
theories for the isotropic-nematic transition  being the Maier-Saupe and the Onsager theories 
and how they are derived from a common description  known as (classical) density functional
theory (DFT). This book will be a valuable resource for senior undergraduate and graduate
students  and experimentalists and engineers who feel intimidated by more formal or rigorous
theoretical accounts and textbooks. Exercises at the end of each chapter help the reader to
apply the basic concepts also to other types of liquid crystal  in particular the smectic
liquid crystal.

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