Correlation between Chirality and Spherical Particle Formation Related to the Loss of Function of Thixotropic Additive Molecules

Abstract

AbstractThe relationship between chirality and loss of function of thixotropic additive molecules with asymmetric carbon and helical fiber growth under high‐temperature exposure was investigated. Among the thixotropic additive molecules that impart gelation/fluidization ability during pressurization of the solvent, derivatives with high‐performance, helical fiber growth ability became mesoscopic spherical particles upon high‐temperature exposure. Conversely, derivatives that lost their fiber growth ability could not achieve solvent gelation. The growth pattern was such that the helical fibers were transformed into straight fibers. The right‐handed helical signal of the circular dichroism spectrum, which is indicative of chirality by structure formation, was inactivated upon high‐temperature exposure. Therefore, a low‐temperature process or heat treatment in an inert state under a N2 atmosphere is essential for maintaining chirality and helical fibrosis.