Skip to main content
SpringerLink
Log in

Micro- and macroconformation of macromolecules

9. Cyclotetracosane solid and molten state phase transitions by DSC, brillouin scattering, dielectric and 13C-NMR high resolution measurements

  • Published:
Polymer Bulletin Aims and scope Submit manuscript

Summary

Cyclotetracosane exhibits complex phase behaviour in the solid state as well as in the melt as evidenced by complementary methods, DSC, BRILLOUIN scattering, dielectric constant and PE-MAS 13c-NMR. Three solid phases have been verified, one of them — within the range from 299.5 to 312 K — exhibits extremely high molecular mobility. Between the start of melting, 312 K, and the first order transition at ∼ 321 K a mesomorphic type region develops. Two additional transitions have been detected in the melt. That occuring at 361 K (DSC), 356 K (BRILLOUIN data) resembles the Tu as observed in n-alkanes.

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. MÖLLER, M., CANTOW, H.-J., KRÜGER, J. K. and HÖCKER, H. Polymer Bulletin 5 125 (1981)

    Google Scholar 

  2. UNRUH, H. G. and STRÖMICH, J., Solid State Com. (1981) in press

  3. KRÜGER, J. K., PEETZ, L., PIETRALLA, M. and WILDNER, W. Polymer 21, 620 (1980)

    Google Scholar 

  4. ANET, F. A. L. and ANET, R. (1975), cit. p. 129 preceeding paper

  5. DALE, J., Acta Chem. Scand. 27, 1115 and 1130 (1973)

    Google Scholar 

  6. TRZEBIATOWSKI, T., Thesis Mainz (1980)

  7. KRÜGER, J. K., PEETZ, L., PIETRALLA, M. and UNRUH, H. G. Colloid and Pol. Sci. 259, 215 (1981)

    Google Scholar 

  8. KRÜGER. J. K., Solid State Com. 30, 43 (1979)

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Fachrichtung 11.2 — Experimentalphysik — der Universität des Saarlandes, 6600, Saarbrücken, Germany

    J. K. Krüger & J. Albers

  2. Institut für Makromolekulare Chemie der Universität Freiburg, Hermann-Staudinger-Haus, Stefan-Meier-Straße 31, 7800, Freiburg i.Br., Germany

    M. Möller

Authors
  1. J. K. Krüger
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. J. Albers
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. M. Möller
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. H. -J. Cantow
    View author publications

    You can also search for this author in PubMed Google Scholar

Additional information

Generous financial support of DEUTSCHE FORSCHUNGSGEMEINSCHAFT, particularly within the SFB 130, is gratefuly acknowledged. Prof. Dr. H. G. Unruh we thank cordially for fruitful discussions.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Krüger, J.K., Albers, J., Möller, M. et al. Micro- and macroconformation of macromolecules. Polymer Bulletin 5, 131–135 (1981). https://doi.org/10.1007/BF00265156

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00265156

Keywords

Search

Navigation