The synthesis and characterization of nine polysiloxanes containing 4‐alkanyloxyphenyl trans‐4‐alkylcyclohexane side groups are described. Six monomers which contain a pentenyloxy of a hexenyloxy flexible spacer display a nematic mesophase, while the other three monomers which contain an undecenyloxy flexible spacer display nematic, smetic A and smectic E mesophases. All synthesized polymers present two smectic mesophases except one containing 4‐hexanyloxyphenyl trans‐4‐n‐butylcyclohexanoate side groups presents one smectic mesophase and one containing 4‐undecanyloxyphenyl trans‐4‐n‐pentylcyclohexanoate side groups presents three smectic mesophases. Trans‐cis isomerization of mesogens and side chain crystallization did not occur for any of the synthesized polymers.
|Number of pages||10|
|Journal||Journal of Polymer Science Part A: Polymer Chemistry|
|State||Published - 1 Jan 1991|