Spherulitic Characterization and Hierarchical Structural Evaluation of Azacalixarene‐Polyethylene Glycol Copolymers Containing <i>s</i>‐Triazine Rings

This study investigates the solid-state structure of a copolymer composed polyethylene glycol (PEG) and azacalixarene, which has two s-triazine rings phenyl alternately crosslinked by amino groups. Azacalixarene derivatives containing low-molecular-weight linker moiety exhibiting an amorphous have been synthesized in previous studies; however, this study, they are crystallized substitution with PEG. The spherulites formed corresponding possess ability to form higher-order structures, growing up diameter 1.7 mm depending on crystallization conditions. azacalixarene-PEG forms negative via homogeneous nucleation exhibits lamellar period at 13.8 nm. crystalline part itself is 5.8 nm thickness; bulky regions also observed structure. Reciprocal lattice analysis results reveal that crystal parts packing similar promotion spherulite growth predicted reflect characteristics copolymer, crystallizes while universally many regions. article protected copyright. All rights reserved