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Updated: Sep 22, 2025

Synthesis of Information-bearing Peptoids and their Sequence-directed Dynamic Covalent Self-assembly
Published on: February 6, 2020
Solid-State Polycondensation via Ionic-to-Covalent Bond Transformation to Control Polymer Structure: Preparation of
Masato Suzuki1, Kohei Yokota1, Hiroe Tsuchida1
1Department of Materials Science and Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan.
Abstract:
The controlled formation and the regular arrangement of polymer chains have been performed by novel solid-state polycondensation including the ionic-to-covalent bond transformation in the ionic molecular crystals. The combination of the tetra-anion and -cation of tetraphenylporphyrin derivatives, tetrakis(benzylpyridinium carboxylate), was found to form layered crystal structures and underwent thermal solid-state polycondensation, thus, releasing the pyridine and forming the benzyl ester linkages. Powder X-ray diffraction, when compared to the monomer crystal structure data, suggested that the ladder polymer was produced with a layered structure.
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