Advertisement

Molecular Complexes of Cellulose with Metals New Development

  • Nina E. Kotelnikova
  • Deitrich Fengel
  • Valery P. Kotelnikov
Chapter

Abstract

The existence of periodical substructures in cellulose has been shown in many papers14. In order to confirm this, various chemical methods were applied. In combination with advanced experimental physical procedures, particularly with electron microscopy, these methods give visualization of structural elements. Accorging to some researches, these periodical structures are formed by aggregates of cellulose molecules 30-40 A in width and with the length depending on the degree of polymerization of the sample. The mode of torsion of the macromolecules, i.e. the mode of steric arrangement of the macromolecules with respect to each other, is of importance and can vary. This determines distinction in cellulose hydrogen bonding system and, hence, its reactivity.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    M. Stoll and D. Fengel, Electron microscopic visualization of individual cellulose molecules, Holzforschung, 43:7 (1989).CrossRefGoogle Scholar
  2. 2.
    D. Fengel and M. Stoll, On the probability of the existence of periodical substructures in cellulose, Macromol. Chem., 190:2491 (1989)CrossRefGoogle Scholar
  3. 3.
    J. Sugiyama, H. Chanzy, and G. Maret, Orientation of cellulose microcrystals by strong magnetic fields, Macromolecules, 25:4232 (1992).CrossRefGoogle Scholar
  4. 4.
    S. Mizuta and R.M.Brown, High resolution analysis of the formation of cellulose synthesizing complexes in Vaucheria hamata. Protoplasma, 166:187 (1992).CrossRefGoogle Scholar
  5. 5.
    J. Reedijk, Metal coordination by natural macromolecules, in: Abstracts of the 5th International Symposium on Macromolecule-Metal Complexes (MMC V), Bremen, Germany (1993).Google Scholar
  6. 6.
    N.E. Kotelnikova, D. Fengel, V.P. Kotelnikov, M. Stoll, New metallic derivatives of cellulose. Compounds of microcrystalIine cellulose and potassium, J. Inorg. Organomet. Polymers, 4:315 (1994).CrossRefGoogle Scholar
  7. 7.
    N.E.Kotelnikova, V.P. Kotelnikov, New molecular complexes of cellulose with metals, in: Abstracts of Symposium on Cellulose and Lignocellulosics Chemistry, Guangzhou, China (1991).Google Scholar

Copyright information

© Springer Science+Business Media New York 1996

Authors and Affiliations

  • Nina E. Kotelnikova
    • 1
  • Deitrich Fengel
    • 2
  • Valery P. Kotelnikov
    • 3
  1. 1.Institute of Macromolecular CompoundsRussian Academy of SciencesSt.PetersburgRussia
  2. 2.Institute for Wood ResearchUniversity of MunichMunichGermany
  3. 3.“THESA” Co., LtdSt.PetersburgRussia

Personalised recommendations