کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9693914 1459633 2005 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Phase behaviour of binary mixtures of LC compounds of different molecular structure and comparable molecular length
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
Phase behaviour of binary mixtures of LC compounds of different molecular structure and comparable molecular length
چکیده انگلیسی
Phase diagrams were constructed for the various binary systems made from compounds of structurally different mesogens; one component is from the five homologous series 4-(4′-substituted phenylazo)phenyl-4″-alkoxybenzoates (Ia-e) and the other from the similarly substituted homologous series 4-(4′-substituted phenyl carbonyloxy)phenyl-4″-alkoxy benzoates (IIa-e). Transition temperatures of all mixtures prepared were measured by differential scanning calorimetry and identified by polarized light microscopy. Polarity and polarizability of the investigated compounds could be varied by changing the substituent X (CH3O, CH3, Cl, CN and NO2), which covers a wide range of polarity, and the alkoxy-chain length, which varied between 6, 8, 14, or 16 carbons.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thermochimica Acta - Volume 439, Issues 1–2, 1 December 2005, Pages 142-150
نویسندگان
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