Skip to main content
SpringerLink
Log in

Chromatographic determination of the oligomer content in aqueous solutions in caprolactam regeneration

  • Manufacturing Control
  • Published:
Fibre Chemistry Aims and scope

Conclusions

-- The qualitative and quantitative analysis for the content of oligomers in aqueous solutions in caprolactam regeneration may be carried out by the liquid-chromatography method after selective extraction of the monomer.

-- The decisive role of compactness and of contact surface of the oligomer molecules in hydrophobic-dispersion interaction with chemically modified silica gel and in effect on retention time in the chromatographic system has been demonstrated.

-- The proposed procedure is characterized by accuracy and reproducibility of the results and can be recommended for scientific and also for manufacturing purposes.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. A. S. Chegolya and N. M. Kvasha, Analytical Control in the Manufacture of Synthetic Fibres. A Handbook Aid [in Russian], Khimiya, Moscow (1982).

    Google Scholar 

  2. G. I. Kudryavtsev, M. P. Nosov, and A. V. Volokhina, Polyamide Fibres [in Russian], Khimiya, Moscow (1976).

    Google Scholar 

  3. L. A. Vol'f and B. Sh. Khaitin, Polymerization of Caprolactam [in Russian], Khimiya, Leningrad (1982).

    Google Scholar 

  4. S. Mori and T. Takeuchi, J. Chromatogr., No. 50, 230–233 (1970).

  5. J. M. Andrews, F. R. Jones, and J. A. Semlyen, Polymer., No. 15, 420–423 (1974).

  6. J. Brodilova et al., J. Chromatogr., No. 168, 530–532 (1979).

  7. V. Krajnik et al., J. Chromatogr., No. 240, 539–540 (1982).

  8. R. N. Nikolov, J. Chromatogr., No. 286, 147–150 (1984).

  9. R. N. Nikolov, Izv. Khim.-Commun. Dept. Chem. Bulg. Acad. Sci., No. 15, 36–39 (1982).

Download references

Authors
  1. R. N. Nikolov
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. N. I. Angelova
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. D. I. Pishev
    View author publications

    You can also search for this author in PubMed Google Scholar

Additional information

Institute of Pneumatic Tires and Polyamide Fibres (Vidin, Bulgaria). Translated from Khimicheskie Volokna, No. 5, pp. 57–59, September–October, 1992.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Nikolov, R.N., Angelova, N.I. & Pishev, D.I. Chromatographic determination of the oligomer content in aqueous solutions in caprolactam regeneration. Fibre Chem 24, 425–427 (1993). https://doi.org/10.1007/BF00551596

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00551596

Keywords

Search

Navigation