Abstract
AbstractThe synthesis of three cyclic imino ethers containing mesogenic groups attached to the heterocyclic unit through flexible spacers is described. Cationic ring‐opening isomerization polymerization of two of them, i.e., 2‐[4‐(4‐methoxy‐4′‐biphenyloxy)butyl]‐2‐oxazoline (MeOBiph‐4‐Oxz) and 2‐[6‐(4‐methoxy‐4′‐biphenyloxy)hexyl]‐2‐oxazoline (MeOBiPh‐6‐Oxz) provided thermotropic liquid crystalline (LC) poly(N‐acylethyleneimine)s, whereas the polymerization of 2‐[4‐(4‐phenylphenoxy)butyl]‐2‐oxazoline (BiPh‐4‐Oxz) led to a crystalline polymer.
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