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Studies on Induced Smectic Phases (VI). The Role of the Ratio of the Molecular Lengths in Binary Mixtures of Smectogens
Author(s) -
Szabon J.,
Weissflog W.,
Pelzl G.,
Diele S.,
Demus D.
Publication year - 1986
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.2170210826
Subject(s) - binary number , polar , thermodynamics , phase (matter) , chemistry , saturation (graph theory) , liquid crystal , mixing (physics) , binary system , materials science , crystallography , organic chemistry , physics , arithmetic , mathematics , optoelectronics , combinatorics , astronomy , quantum mechanics
In a number of binary systems composed of liquid crystalline terminal‐polar and terminal‐nonpolar compounds the S A phase induction was studied in dependence of the molecular length ratio r of the mixing components. It was found that there is a connection between the maximum temperature of the S A N or S A ‐Is transition curve and the molecular length ratio r . Up to a certain ratio the smectic induction increases and after that it reaches a saturation. The studies were completed by X‐ray and calorimetric measurements in selected binary systems.