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Intercalation of ε-caprolactam Ions into Inorganic Hosts

Published online by Cambridge University Press:  31 January 2011

Shin-Ichiro Katahira ,
Kenji Yasue  and
M. Inagaki
Shin-Ichiro Katahira
Affiliation:
Unitika Research and Development Center, Kozakura, Uji, Kyoto, 611–0021, Japan
Kenji Yasue
Affiliation:
Unitika Research and Development Center, Kozakura, Uji, Kyoto, 611–0021, Japan
M. Inagaki
Affiliation:
Graduate School of Engineering, Hokkaido University, Kita-ku, Sapporo, 060–8628, Japan
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Abstract

The intercalation reaction of ε-caprolactam anion (ε–CL-) into hydrotalcite heated up to 500 °C to expel in its double hydroxide gallery and also that of ε-caprolactam cation (ε–CL+) into mica were successfully performed in their aqueous solutions. The intercalation reaction of ε–CL- into 500 °C heated hydrotalcite was completed within 1 h at 60 °C, and the resultant intercalation compound had the interlayer spacing of 0.77 nm. The intercalation of ε–CL+ into mica, on the other hand, proceeded rather slowly in two steps, which was due to the presence of two species, Na+ and hydrated Na+ in the mica gallery, and gave the intercalation compound with the interlayer spacing of 1.47 nm.

Type
Articles
Information
Journal of Materials Research , Volume 14 , Issue 4 , April 1999 , pp. 1178 - 1180
Copyright
Copyright © Materials Research Society 1999

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References

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