期刊
HELVETICA CHIMICA ACTA
卷 -, 期 -, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/hlca.202300053
关键词
biominerals; liquid crystals; organic-inorganic hybrid composites; self-assembly; supramolecular chemistry
We developed a new thermotropic colloidal liquid-crystalline organic/inorganic hybrid material consisting of a hydroxyapatite/poly(acrylic acid) nanorod and a dendritic forklike mesogen. The surface modification of the nanorod with the mesogen resulted in the formation of thermotropic colloidal liquid crystals. These biomineral-based materials have potential for the development of new stimuli-responsive sustainable materials.
We here report the development of new thermotropic colloidal liquid-crystalline (LC) organic/inorganic hybrids consisting of a hydroxyapatite (HAp)/poly(acrylic acid) (PAA) nanorod and a dendritic forklike mesogen. Complexation of the HAp/PAA nanorod covered with negatively charged PAA and a cationic forklike mesogen through electrostatic interactions and cation metathesis results in the surface modification of the HAp/PAA nanorod with the forklike mesogen. While the HAp/PAA nanorod forms a lyotropic colloidal LC phase in the aqueous dispersion, the HAp/PAA nanorod modified with the forklike mesogen exhibits thermotropic colloidal LC phases in the solvent-free states. The biomineral-based organic/inorganic colloidal liquid crystals exhibiting thermotropic LC properties have potential for the development of new stimuli-responsive sustainable materials.
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