Skip to main content
Log in

Enantiomorphism in the super helices of poly-γ-benzyl-glutamate

  • Originalarbeiten
  • Polymere
  • Published:
Kolloid-Zeitschrift und Zeitschrift für Polymere Aims and scope Submit manuscript

Summary

Aggregates of poly-γ-benzyl-d (orl-glutamate were precipitated by mixing of its solution in dimethylformamide or dioxane with propionic acid. Electron micrographs showed that the aggregates were composed of well-developed helical fibrils. The sence of helix was right-handed for thed-isomer and left-handed for thel-isomer; an enantiomorphic relation was shown for the helical aggregate of optical active macromolecule. Two recent publications have given conflicting results for the helical sense of the aggregate. This seems to be ascribed to carelessness in determining the helical sense from the electron micrographs.

Zusammenfassung

Es wurden Aggregate von Poly-γ-benzyl-d (oderl)-glutamat durch Mischung von deren Lösung in Dimethylformamid oder Dioxan mit Propionsäure ausgefällt. Die elektronenmikroskopischen Bilder zeigen, daß die Aggregate aus gut ausgebildeten Helixfibrillen bestehen. Der Drehsinn der Helix war rechtsläufig für dasd-Isomer und linksläufig für dasl-Isomer. Eine enantiomorphe Beziehung läßt sich für die Helix-Aggregate zu den optisch aktiven Strukturen der Makromoleküle zeigen. Zwei kürzliche Veröffentlichungen ergaben zu dem hier Festgestellten widersprüchliche Ergebnisse über den Schraubensinn der Helices der aggregate. Dies scheint der Sorglosigkeit bei der Bestimmung des Schraubensinns von elektronenmikroskopischen Bildern zuzuschreiben zu sein.

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

Access this article

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

Instant access to the full article PDF.

Similar content being viewed by others

References

  1. Hirai, N., J. Polymer Chem. Japan21, 193 (1964).

    Google Scholar 

  2. Hirai, N. andK. Inukai, This paper was read at the 17th Annual Meeting of Chemical Society of Japan. April, 1964, Tokyo.

  3. Ishikawa, S. andT. Kurita, Biopolymer2, 331 (1964).

    Google Scholar 

  4. Tachibana, T. andH. Kambara, J. Amer. Chem. Soc.87, 3015 (1965).

    Google Scholar 

  5. Tsuboi, M., J. Polymer Sci.59, 139 (1962)

    Google Scholar 

  6. Miyazawa, T., Y. Masuda andK. Fukushima, J. Polymer Sci.62, S 62 (1962).

    Google Scholar 

  7. Elliott, A., andB. R. Malcolm, Proc. Roy. Soc.249 A, 30 (1959).

    Google Scholar 

  8. Crick, F. H. C., Acta Cryst.6, 689 (1953).

    Google Scholar 

  9. Yoshida, T., S. Sakurai, T. Okuda andY. Takagi, J. Amer. Chem. Soc.84, 35900 (1962).

    Google Scholar 

  10. Robinson, C., “Surface Phenomena in Chemistry and Biology” ed. by J. F. Danielli and Others, p. 133 (1958).

Download references

Author information

Authors and Affiliations

Authors

Additional information

With 1 figure in 3 details

Rights and permissions

Reprints and permissions

About this article

Cite this article

Tachibana, T., Kambara, H. Enantiomorphism in the super helices of poly-γ-benzyl-glutamate. Kolloid-Z.u.Z.Polymere 219, 40–42 (1967). https://doi.org/10.1007/BF02086093

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02086093

Keywords

Navigation