Molecular engineering of discotic nematic liquid crystals

Sandeep Kumar

doi:10.1007/bf02708302

Molecular engineering of discotic nematic liquid crystals

Sandeep Kumar

Centre for Nano and Soft Matter Sciences

Research output: Contribution to journal › Article › peer-review

20 Scopus citations

Abstract

Connecting two columnar phase forming discotic mesogens via a short rigid spacer leads to the formation of a π-conjugated discotic dimer showing discotic nematic (N_D) phase. Attaching branched-alkyl chains directly to the core in hexaalkynylbenzene resulted in the stabilisation of N_D phase at ambient temperature. Pentalkynylbenzene derivatives possessing a combination of normal- and branched-alkoxy chains display a very broad N_D phase which is stable well below and above the room temperature.

Original language	English
Pages (from-to)	199-203
Number of pages	5
Journal	Pramana - Journal of Physics
Volume	61
Issue number	2
DOIs	https://doi.org/10.1007/bf02708302
State	Published - Aug 2003
Externally published	Yes

Keywords

Alkynylbenzene
Discotic dimers
Discotic nematic liquid crystals
Liquid crystal display
Multiynes

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10.1007/bf02708302

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abstract = "Connecting two columnar phase forming discotic mesogens via a short rigid spacer leads to the formation of a π-conjugated discotic dimer showing discotic nematic (ND) phase. Attaching branched-alkyl chains directly to the core in hexaalkynylbenzene resulted in the stabilisation of ND phase at ambient temperature. Pentalkynylbenzene derivatives possessing a combination of normal- and branched-alkoxy chains display a very broad ND phase which is stable well below and above the room temperature.",

keywords = "Alkynylbenzene, Discotic dimers, Discotic nematic liquid crystals, Liquid crystal display, Multiynes",

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AB - Connecting two columnar phase forming discotic mesogens via a short rigid spacer leads to the formation of a π-conjugated discotic dimer showing discotic nematic (ND) phase. Attaching branched-alkyl chains directly to the core in hexaalkynylbenzene resulted in the stabilisation of ND phase at ambient temperature. Pentalkynylbenzene derivatives possessing a combination of normal- and branched-alkoxy chains display a very broad ND phase which is stable well below and above the room temperature.

KW - Alkynylbenzene

KW - Discotic dimers

KW - Discotic nematic liquid crystals

KW - Liquid crystal display

KW - Multiynes

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Molecular engineering of discotic nematic liquid crystals

Abstract

Keywords

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