1197002-38-2Relevant academic research and scientific papers
Novel liquid-crystalline mesogens and main-chain chiral smectic thiol-ene polymers based on trifluoromethylphenyl moieties
Yang, Hong,Wang, Lixing,Shao, Renfan,Clark, Noel A.,Ortega, Josu,Etxebarria, Jesus,Albouy, Pierre-Antoine,Walba, David M.,Keller, Patrick
supporting information; experimental part, p. 7208 - 7215 (2010/05/18)
The synthesis and characterization of a series of novel liquid-crystalline molecules containing a trifluoromethylphenyl core or a 2,3-bis(trifluoromethyl) phenyl core is described. All trifluoromethylphenyl-containing compounds (W530, W551, and W558) have mesomorphic properties while 2,3-bis(trifluoromethyl) phenyl-containing compounds (W555, W556, W557) are room-temperature crystals without mesophases. Thereafter, based on the chemical structure of W558, to pursue a mesogen with a large electroclinic effect in the SmA* phase for development into electromechanical actuators, a chiral smectic thiol-ene monomer (K0901) is synthesized and polymerized in organic solvents. The polymer is characterized by GPC, DSC, PLM, XRD and shows an expected I-SmA* -Glass phase sequence though the electroclinic effect is relatively small.
