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Microwave‐assisted Facile Synthesis of Liquid Crystalline Non‐symmetrical Hexaalkoxytriphenylenes Containing a Branched Chain and Their Characterization by Hari Krishna Bisoyi; Sandeep Kumar is a Chemistry article available to read on EtoBox.
What is Microwave‐assisted Facile Synthesis of Liquid Crystalline Non‐symmetrical Hexaalkoxytriphenylenes Containing a Branched Chain and Their Characterization about?
## Abstract Two novel series of liquid crystalline non‐symmetrical hexaalkoxytriphenylenes containing a branched alkyl chain have been prepared using microwave dielectric heating. Series **1** contains 2‐ethyl hexyloxy group as the branched chain whereas series **2** contains 3,7‐dimethyl octyloxy as the branched chain along with five normal alkoxy chains. The number of carbon atoms varies from four to eight in the normal alkoxy chains. Mesophase behaviour of the compounds has been characterized by polarizing optical microscopy, differential scanning calorimetry and mesophase structure has been characterized by X‐ray diffractometry. All the compounds show enantiotropic mesophase transitions with columnar hexagonal structure. In series **1** (**4a**–**e**) the mesophase range and transition temperatures of all the compounds are lowered as compared to the parent compounds whereas in series **2** (**5a**–**e**) the transition temperatures of all the compounds are lowered, mesophase range for lower members are decreased, however, higher members show more mesophase stability. Both melting and clearing temperatures of series **2** (**5a**–**e**) show strong odd–even effect. The intercolu
Who reads Microwave‐assisted Facile Synthesis of Liquid Crystalline Non‐symmetrical Hexaalkoxytriphenylenes Containing a Branched Chain and Their Characterization?
It is typically read by researchers, students, and practitioners in Chemistry.
- Author
- Hari Krishna Bisoyi; Sandeep Kumar
- Publisher
- John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley (ISSN 0894-3230)
- Published
- 2007
- Language
- EN
- Field
- Chemistry (Physical Sciences)