抄録
Intercalation of ε-caprolactam into kaolinite was achieved by the guest displacementmethod using a kaolinite-methanol intercalation compound as the intermediate. The basal spacing of the kaolinite-ε-caprolactam intercalation compound was 1.31 nm, which was larger than those of both kaolinite (0.72 nm) and the kaolinite-methanol intercalation compound (1.11 nm). IR analysis revealed the formation of hydrogen bondings between the carbonyl groups of ε-caprolactam and the hydroxyl groups of kaolinite. The thermal behavior of the product implied that in-situ polymerization of ε-caprolactam to nylon 6 by heat treatment was unsuccessful because of deintercalation reaction of ε-caprolactam molecules.
