najoNanosystems: Physics, Chemistry, MathematicsНаносистемы: физика, химия, математика2220-80542305-7971Университет ИТМО10.17586/2220-8054-2025-16-3-364-373najo-325Research ArticleNANOSYSTEMS: PHYSICS, CHEMISTRY, MATHEMATICSНАНОСИСТЕМЫ: ФИЗИКА, ХИМИЯ, МАТЕМАТИКАInvestigation of morphological features and thermal stability of regenerated wood cellulose from solutions in [BMIm]ClИсследование морфологических особенностей и термической стабильности регенерированной древесной целлюлозы из ее растворов в [BMIm]ClМихалеваМ. Г.MikhalevaM. G.

Mariya G. Mikhaleva – Ph.D, senior researcher

4 Kosygina Street, Moscow, 119991

maria.mikhaleva@chph.ras.ruУсачевС. В.UsachevS. V.

Sergey V. Usachev – Ph.D, senior researcher

4 Kosygina Street, Moscow, 119991

https://orcid.org/0000-0001-9295-583XВеденкинА. С.VedenkinA. S.

Alexander S. Vedenkin – researcher

4 Kosygina Street, Moscow, 119991

alexander.vedenkin@chph.ras.ruhttps://orcid.org/0000-0003-4411-1119ИкимМ. И.IkimM. I.

Mariya I. Ikim M. – Ph.D, senior researcher

4 Kosygina Street, Moscow, 119991

maria.ikim@chph.ras.ruПолитенковаГ. Г.PolitenkovaG. G.

Galina G. Politenkova – researcher

4 Kosygina Street, Moscow, 119991

+7(495)939-7225

galina.politenkova@chph.ras.ruhttps://orcid.org/0000-0003-3191-8415ЛомакинС. М.LomakinS. M.

Sergey M. Lomakin – Ph.D, head of laboratory

4 Kosygina Street, Moscow, 119991

omakin@sky.chph.ras.ruN. N. Semenov Federal Research Center for Chemical Physics, Russian Academy of SciencesRussian FederationN. N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences; Emanuel Institute of Biochemical Physics, Russian Academy of SciencesRussian FederationEmanuel Institute of Biochemical Physics, Russian Academy of SciencesRussian Federation202529062025163364373Copyright © Mikhaleva M.G., Usachev S.V., Vedenkin A.S., Ikim M.I., Politenkova G.G., Lomakin S.M., 20252025Михалева М.Г., Усачев С.В., Веденкин А.С., Иким М.И., Политенкова Г.Г., Ломакин С.М.Mikhaleva M.G., Usachev S.V., Vedenkin A.S., Ikim M.I., Politenkova G.G., Lomakin S.M.This work is licensed under a Creative Commons Attribution 4.0 License.https://nanojournal.ifmo.ru/jour/article/view/325

A study of the morphological features of regenerated wood pulp LS-0 obtained from its solutions in [BMIm]Cl at concentrations ranging from 2 to 26 % has been performed. It was demonstrated that at concentrations of LS-0 up to 8 % in [BMIm]Cl, thermograms exhibited a reduction in thermal stability concomitant with an increase in coke residue. In samples of regenerated cellulose obtained from solutions with an LS-0 content of 14 % or more, two maxima are observed on the differential thermogravimetric curves (DTG). This phenomenon was explained by the presence of two phases formed during the dissolution-regeneration process. The impact of [BMIm]Cl on the structural characteristics of regenerated cellulose was investigated through IR spectroscopy and X-ray diffraction analysis.

Проведены исследования морфологических особенностей регенерированной древесной целлюлозы ЛС-0, полученной из ее растворов в [BMIm]Cl в диапазоне концентраций от 2% до 26%. Обнаружено, что при концентрациях ЛС-0 до 8% в [BMIm]Cl на термограммах наблюдается снижение ее термической стабильности с одновременным увеличением коксового остатка. В образцах регенерированной целлюлозы, полученной из растворов с содержанием ЛС-0 14% и более, на дифференциальных термогравиметрических кривых (DTG) наблюдаются два максимума. Это явление было объяснено присутствием двух фаз, образующихся в процессе растворения-регенерации. Методами ИК-спектроскопии и рентгеноструктурного анализа показано влияние [BMIm]Cl на морфологию регенерированной целлюлозы.

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The authors declare that there are no conflicts of interest present.