Abstract
Liquid crystal structures which are a collection of molecular clusters have been found in concentrated solutions of sodium salt of poly(glutamic acid) by means of polarizing micrograph, scattering of laser light, infrared absorption, X-ray diffraction, circular dichroism, and some other physical methods. This polymer undergoes a coil–helix transition at a certain polymer concentration that depends on the temperature, even at slightly alkaline pHs, and eventually becomes liquid crystalline. With the addition of 50-%(v/v) dioxane, helical polymers are separated as coacervate and show similar structures.
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Iizuka, E., Kondo, Y. & Ukai, Y. The Liquid Crystals of Sodium Salt of Poly(glutamic acid) in Aqueous Solution. Polym J 9, 135–144 (1977). https://doi.org/10.1295/polymj.9.135
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DOI: https://doi.org/10.1295/polymj.9.135
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