Supramolecular architecture of betulin diacetate complexes with arabinogalactan from Larix sibirica

Тип публикации: статья из журнала

Год издания: 2016

Идентификатор DOI: 10.1016/j.carbpol.2015.11.047

Ключевые слова: Arabinogalactan, Betulin diacetate, THz laser ablation, NMR, Polymer associates, Arabinogalactan-betulin diacetate complex, Arabinogalactan, Arabinogalactan-betulin diacetate complex, Betulin diacetate, NMR, Polymer associates, THz laser ablation, Ablation, Chains, Dimethyl sulfoxide, Electrons, Free electron lasers, Hydrogen bonds, Laser ablation, Molecules, Nuclear magnetic resonance, Organic solvents, Particle size, Particle size analysis, Supramolecular chemistry, Aerosol particles, Arabinogalactan, Betulin diacetate, Dimethyl sulfoxide (DMSO), Side-chain interactions, Submillimeter radiation, Supramolecular architectures, Supramolecular ensembles, Solutions

Аннотация: Supramolecular ensembles of arabinogalactan (AG) and its complexes with betulin diacetate (BDA) were studied in water and dimethyl sulfoxide (DMSO) using ablation, induced by submillimeter radiation from the free electron laser. Solutions of 1 wt% AG resulted in formation of aerosol particles with a maximum size of 60-70 nm. In contrast, with DMSO as the solvent, the majority of particles were significantly smaller. Nevertheless, the addition of water shifted the particle size distribution to a larger size, suggesting the cross-linking of AG chains due to hydrogen bonding through water molecules. The ensembles of molecules were larger in solutions of the AG-BDA complex as compared to pure AG aqueous solution, and the distribution was narrow. The role of side chain interactions in the formation of AG-BDA complexes in aqueous solutions was confirmed by NMR. (C) 2015 Elsevier Ltd. All rights reserved.

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Издание

Журнал: CARBOHYDRATE POLYMERS

Выпуск журнала: Vol. 138

Номера страниц: 1-7

ISSN журнала: 01448617

Место издания: OXFORD

Издатель: ELSEVIER SCI LTD

Авторы

  • Mikhailenko M.A. (Institute of Solid State Chemistry and Mechanochem-istry SB RAS,Novosibirsk Stat,Group of Reactivity of Solids)
  • Shakhtshneider T.P. (Novosibirsk State University)
  • Boldyrev V.V. (Novosibirsk State University)
  • Eltsov I.V. (Novosibirsk State University)
  • Kozlov A.S. (Institute of Chemical Kinetics and Combustion SB RAS)
  • Kuznetsova S.A. (Siberian Federal University)
  • Karacharov A.A. (Siberian Federal University)

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