Abstract
Our earlier investigations focused on the use of enamine ketones as part of the mesogenic unit in lyotropic and thermotropic monomeric and polymeric liquid crystals, 1–6 as well as poly(amide enamines) as a new class of biodegradable polymer.1,2 An inherent problem of liquid crystalline polymers with aromatic hydrocarbon rings as the rigid mesogenic unit is that these materials have very low solubility in common organic solvents and very high transition temperatures that make them intractable. We reasoned that by replacing some of the aromatic hydrocarbon rings with hydrogen bonding rings, the transition temperatures should decrease due to decreased symmetry. Also the solubility should increase due to improved interactions between solvents and the heteroatom containing hydrogen bonding rings. Indeed we have been able to prepare soluble and fusible monomeric and polymeric liquid crystals with the enamine ketone group (1) as part of the mesogenic unit.3–6
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.