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Thermodynamic and analytical study at infinite dilution of Non-polar organics solution by IGC used Schiff Base liquid crystal as stationary phase
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نویسنده
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boudaoud a. ,djedid m. ,benalia m. ,ad c. ,elmsellem h. ,al-dujaili a.h.
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منبع
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journal of materials and environmental science - 2016 - دوره : 7 - شماره : 6 - صفحه:1979 -1987
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چکیده
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This article describes the thermodynamic parameters and phase behaviour of a schiff base liquid crystal,the mesogene was synthesized in the five chemical reactions and characterized by ftir,1h and 13c-nmr techniques. the mesomorphic properties were studied using differential scanning calorimetry (dsc) and polarizing optical microscopy (pom),the retention diagrams of n-alkanes on the stationary phase were plotted at temperatures in °c between 100 and 170 by inverse gas chromatography technique. the separation of nalkanes was estimated using retention times in the infinite dilution region. the thermodynamic parameters of intermolecular interactions between the stationary phase and n-alkanes (free energy,enthalpy,and entropy) were calculated and the results were discussed.
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کلیدواژه
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IGC; Liquid crystals; N-alkanes; Schiff base; Stationary phase; Thermodynamic parameters
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آدرس
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laboratory of process engineering,department process engineering,laghouat university,p.o box 37g,route de ghardaïa,laghouat, Algeria, laboratory of process engineering,department process engineering,laghouat university,p.o box 37g,route de ghardaïa,laghouat, Algeria, laboratory of process engineering,department process engineering,laghouat university,p.o box 37g,route de ghardaïa,laghouat, Algeria, laboratory of process engineering,department process engineering,laghouat university,p.o box 37g,route de ghardaïa,laghouat, Algeria, laboratoire de chimie analytique appliquée,matériaux et environnement (lc2ame),faculté des sciences,b.p. 717,oujda, Morocco, king saud university,department of chemistry,faculty of sciences,riyadh, Saudi Arabia
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Authors
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