Synthesis and mesomorphic properties of side chain liquid-crystalline biphenyl-phenyl polyacrylates

• Main Authors: Ritter Olga M. S., Silveira Nádya P. da, Merlo Aloir A.
• Format: Article
• Language: English
• Published: Sociedade Brasileira de Química 2006-01-01
• Series: Journal of the Brazilian Chemical Society
• Subjects: chiral polyacrylates; L-isoleucine; synthesis; liquid crystal
• Online Access: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532006000200019

The synthesis and characterization of two chiral side-chain liquid crystal based on polyacrylates having a biphenyl-phenyl system as a core unit are described. The chiral terminal chain is derived from L-isoleucine. In each case an undecyl spacer was used to connect the mesogenic group to the backbone. Smectic A phase was found for both polymers. The transitional properties were dependent on structural parameters such as backbone flexibility and chiral terminal chain connectivity.