A. Blumstein, K. Sivaramakrishnan, R. Blumstein
1982
Citations
0
Influential Citations
38
Citations
Journal
Polymer
Abstract
Abstract Polymers containing, in the main chain, various mesogenic moieties separated by flexible spacers have been prepared by condensation of the corresponding diphenol or diol with an aliphatic diacid chloride. The polymers have been characterized by X-ray, d.s.c. and polarizing microscopy. The diacids used were sebacic (SEB), succinic (SUC) and 3-methyladipic (MAA). The biphenols were 4-hydroxyl- N -benzylidene-4′-hydroxyaniline(1), 4.4′-biphenol(2), 4,4′-bis (2-hydroxyethoxy)-biphenyl(5) and 3,3′-dimethyl-4,4′-di(2-hydroxyethoxy)-stilbene(7). The polymers SEB-1 and SEB-2 were classified as giving thermotropic lamellar mesophases; SEB-5, SEB-7 and SUC-5 as potentially nematic; MAA-2 and SUC-2 gave crystalline polymers.