W. Yong
2012
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Journal
Chinese Journal of Synthetic Chemistry
Abstract
Novel rod-shaped sulfonic acid compounds,4-alkoxy-4′-butyloxy-sulfonate-biphenyl(3a and 3b),based on a mesogen were synthesized from biphenyl by ring-opening reaction of butane sultone.The structures were characterized by the 1H NMR and IR.The results from polarized optical microscopy and differential scanning calorimete showed that 3 exhibited thermotropic Smectic A phase beyond 180 ℃.