Simultaneous one‐pot syntheses of PA66 and HAp were carried out by extracting H2O and CO2 from PA66 monomers and HAp raw materials, respectively, resulting in the formation of a polyamide (PA) 66‐hydroxyapatite (HAp) nanocomposite. During the process, a spherical nano‐sized HAp particle was precipitated following dissolution of micro‐sized CaHPO4・2H2O. The PA66 monomers were subsequently adsorbed onto the generated HAp product. Some of the adsorbed PA66 monomers formed a bound polymer on HAp, and an increase in the adhesiveness of the PA66‐HAp interface was observed as the polymerization progressed. During this process, the synthesis of a nanocomposite from a micro‐sized raw material and creation of an autonomous strong interface between the matrix and filler was achieved. In addition, the shape of the resultant HAp was controllable and could be modified to needle shape by the addition of F− and Mg2+ ions to the raw material. HAp could also be changed to plate shape via octa‐calcium phosphate (OCP). Notably, during the synthesis, the filler shape of the nanocomposite could be controlled to 0D (particle), 1D (needle), and 2D (plate).

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Low molecular-mass organic compounds 1 and 2 having 2-(perfluoroalkyl)ethyl groups at both terminal positions were prepared and their gelation abilities were explored. Compounds 1 and 2 without hydrogen bonding group can gelatinize various organic solvents and/or ionic liquids at low concentration. Compound 1 can gelatinize toluene, while compound 2 dissolve in toluene. Compounds 1 and 2 gelatinize electrolyte showing effective gelation properties. The firmed supramolecular gels are physical gels with thermally reversible sol-gel phase transition. The difference of ionic conductivity between liquid state and gel state were analyzed.