Comparative study of chemical and topological structure of macromolecules of lignins of birch (Betula verrucosa) and apple (Malus domestica) wood.
作者： Vladimir Aleksandrovich Belyy , Anatoly Petrovich Karmanov , Lyudmila Sergeevna Kocheva , Polina Sergeevna Nekrasova , Maria Vitalyevna Kaneva
DOI: 10.1016/J.IJBIOMAC.2019.01.095
关键词:
摘要: Abstract Recent advances in investigations of chemical structure lignin give rise to questions about relationship between and topology the macromolecules. In this paper, we made a comparison results studies topological structures lignins. The features lignins birch apple wood were identified on basis study dilute solutions by sedimentation-diffusion analysis viscometry. number branches macromolecules was calculated Zimm-Kilb equation. Quantitative characteristics obtained 2D NMR spectroscopy nitrobenzene oxidation. structural calculations based hydrodynamic data gave estimation degree branching macromolecules, which fit well theory role dibenzodioxocin 4′-O-5
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