Abstract
Novel supramolecular side-chain liquid-crystalline polymers were prepared from poly(acrylic acid) (PAA) and pyridyl Schiff base derivatives through intermolecular hydrogen-bonding interaction between PAA and nitrogen of pyridyl Schiff base derivatives. PAA used as H-bond donor. Pyridyl Schiff base derivatives used as H-bond acceptors. The existence of H-bonding was confirmed by FT-IR spectroscopy. Polymer complexes exhibited stable thermotropic mesophase. Differential scanning calorimetry, polarized optical microscopy, and X-ray diffraction measurements were used to investigate LC behavior. The complexes exhibited smectic C phase broken-fan shaped texture. On increasing spacer length of substituent, the clearing temperature range of the mesophase increased.
Published Version
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