Liquid crystal 4-(4'-cyanodiphenyl) esters of trans-4''-N-alkylocyclohex-2-enecarboxylic acids

Liquid crystal 4-(4'-cyanodiphenyl) esters of trans-4''-N-alkylocyclohex-2-enecarboxylic acids

Liquid crystal 4-(4'-cyanodiphenyl) esters of trans-4''-n-alkylcyclohex-2-enecarboxylic acids of the general formula: wherein R is a CH3-C7H15 radical of a normal structure. These compounds have low temperatures of the formation of the liquid crystal phase (42 DEG -50 DEG C.), a small...

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Bibliographische Detailangaben
Hauptverfasser: BEZBORODOV, VLADIMIR S, PTASHNIKOV, JURY L, KONOVALOV, VIKTOR A
Format: Patent
Sprache:eng
Schlagworte:
ADHESIVES
CHEMISTRY
DYES
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
PAINTS
POLISHES
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Zusammenfassung:Liquid crystal 4-(4'-cyanodiphenyl) esters of trans-4''-n-alkylcyclohex-2-enecarboxylic acids of the general formula: wherein R is a CH3-C7H15 radical of a normal structure. These compounds have low temperatures of the formation of the liquid crystal phase (42 DEG -50 DEG C.), a small heat of transition from the crystal phase into the liquid crystal phase ( DELTA H=2.7-3.2 kCal/mol), a wide range of the existence of the liquid crystal phase (140 DEG C.).