Transformation of the polyconjugation systems of humic acids in the course of the metamorphism of caustobioliths

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• 作者：I. I. Lishtvan (1)
  V. P. Strigutskii (1)
  Yu. G. Yanuta (1)
  A. M. Abramets (1)
  Yu. Yu. Navosha (1)
  N. S. Glukhova (1) nature@ecology.basnet.by
  V. N. Aleinikova (1)
• 刊名：Solid Fuel Chemistry
• 出版年：2012
• 出版时间：May 2012
• 年：2012
• 卷：46
• 期：3
• 页码：153-158
• 全文大小：169.2 KB
• 参考文献：1. Lishtvan, I.I., Kaputskii, F.N., Yanuta, Yu.G., et al., Khim. Interesakh Ustoich. Razvit., 2006, vol. 14, no. 4, p. 391.
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• 作者单位：1. Institute for Nature Management, Belarussian Academy of Sciences, ul. F. Skoriny 10, Minsk, 220114 Belarus
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Physical Chemistry
  Russian Library of Science
  
• 出版者：Allerton Press, Inc. distributed exclusively by Springer Science+Business Media LLC
• ISSN：1934-8029

文摘

As found with the use of EPR and IR spectroscopy, the formation of aromatic polyconjugation systems by the destruction of aliphatic molecular fragments is the main transformation mechanism of the molecular structure of the humic acids (HAs) of caustobioliths in the course of their metamorphism. In this case, the final stage of the formation of the polyconjugation systems is the polymerization of monoaromatic fragments. At the stage of the genesis of brown coal, when a sharp decrease in the concentration of monoaromatic fragments is observed and the concentration of the polyconjugation systems increases, the sizes of planar graphite-like structures also increase. It is shown that the method of colloid chemical fractionation [1] makes it possible to obtain HA preparations with regulated concentrations of condensed aromatic structures and aliphatic fragments.