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Synthesis of nylon 6-clay hybrid
Abstract
It was found that montmorillonite cation exchanged for 12-aminolauric acid (12-montmorillonite) was swollen by ∊-caprolactam to form a new intercalated compound. Caprolactam was polymerized in the interlayer of montmorillonite, a layer silicate, yielding a nylon 6-clay hybrid (NCH). The silicate layers of montmorillonite were uniformly dispersed in nylon 6. The carboxyl end groups of 12-aminolauric acid in 12-montmorillonite initiated polymerization of ∊-caprolactam, and as 12-montmorillonite content became larger, the molecular weight of nylon was reduced. From the result of end-group analysis, carboxyl end groups were more than amino end groups. The difference between the carboxyl and the amino end groups was attributed to ammonium cations (-NH 3+) of nylon molecules, because the difference agreed with the anion site concentration of the montmorillonite in NCH. It is suggested that the ammonium cations in nylon 6 interact with the anions in montmorillonite.
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Citations
Cited by
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Metadata
- Authors
- Usuki, A., Kojima, Y., Kawasumi, M., Okada, A., Fukushima, Y., Kurauchi, T., & Kamigaito, O.
- Venue
- Journal of Materials Research
- Published
- 1993-05
- Volume
- 8
- Issue
- 5
- Pages
- 1179-1184
- ISSN
- 0884-1616 (ISSN-L)
- 0884-2914
- 2044-5326
- OpenAlex
- W1981339964
- Cited by
- 2,203
- References
- 0
- FWCI
- 11.39
- Type
- journal article
- Language
- en
- Open access
- closed
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- Usuki, A., Kojima, Y., Kawasumi, M., Okada, A., Fukushima, Y., Kurauchi, T., & Kamigaito, O. (1993). Synthesis of nylon 6-clay hybrid. Journal of Materials Research. https://doi.org/10.1557/jmr.1993.1179
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