Schilling, ChristopherBauch, SoerenWuckert, EugenZens, AnnaBruckner, Johanna R.Laschat, Sabine2025-04-1620251744-68481744-683X1926636449http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-ds-159040https://elib.uni-stuttgart.de/handle/11682/15904https://doi.org/10.18419/opus-15885Rod-like MIDA boronates form smectic mesophases, while wedge-shaped MIDA boronates self-assemble into columnar mesophases. However, the phase behavior of mixtures is less understood. In order to obtain further insight on the molecular self-assembly of MIDA boronate mixtures two series of binary mixtures of rod-like and wedge-shaped mesogens were prepared. The phase behavior was studied using differential scanning calorimetry (DSC), polarizing optical microscopy (POM) and X-ray diffraction (XRD). The study revealed a strong dependency of the mesophase structure on the mesogen composition. Usage of a less bulky columnar mesogen suppressed the formation of columnar mesophases in the mixture and led to a decrease in melting and clearing temperatures. The phase behavior is discussed in terms of the packing parameter model typically applied for lyotropic liquid crystals.enCC BYinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/4.0/540article2025-03-14