120091-70-5Relevant academic research and scientific papers
Nematic tolanes and acetylenes
Skelton, Graham W.,Dong, Dewen,Tuffin, Rachel P.,Kelly, Stephen M.
, p. 450 - 457 (2007/10/03)
The first liquid crystals incorporating a non-conjugated carbon-carbon triple bond in the terminal chain to exhibit a nematic phase above the melting point are reported. A variety of compounds incorporating a carbon-carbon triple bond in the terminal chain or between two phenyl rings have been synthesised as part of an investigation of the effects of the shape, conformation and rigidity of the terminal chains of liquid crystals on their mesophase behaviour. A series of related tolanes incorporating an alkenyloxy chain with an additional carbon-carbon double bond or a simple alkoxy chain as a terminal substituent also were prepared for comparison purposes.
Polymerizable mesogenic tolanes
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, (2008/06/13)
Polymerizable tolanes of formula I wherein P, Sp, X, n, A1, A2, Z1, Z2, m1, m2, L1, L2, r and R have the meanings defined herein, polymerizable liquid crystal compositions comprising at lea
Nematic liquid crystals with a trifluoromethyl group
Kelly, Stephen M.,Skelton, Graham,Jones, Cliff,Minter, Vicki,Tuffin, Rachel
, p. 873 - 880 (2007/10/03)
We have synthesised a new class of compounds incorporating a trifluoromethyl group in the terminal alkoxy or alkenyloxy chain. Compounds containing several aromatic rings were synthesised with a view to producing compounds of high birefringence. This also
