Preparation of herical ionomer networks by polymerization of hydrogen bonding liquid crystalline monomers

Abstract

We have described the preparation of helical ionomer networks with carboxyl groups by polymerrization of LC monomers at an induced cholesteric phase, and hydrolysis of the helical polymer networks. However, it was difficult to induced large amounts of carboxyl groups in the helical networks, because the excessive hydrolysis resulted in the deformation of the helical structure. On the other hand, Kato et al. reported that mesogenic materials could be obtained by self-assembly of pyridine and carboxylic acid compounds. In this study, we describe preparation of hydrogen bonding nematic monomers and polymerization of the induced cholesteric phase by adding chiral molecules in the hydrogen bonding nematic monomers to give helical polymer networks with carboxyl groups.