COMPARATIVE STUDY OF POWDER CELLULOSE DISSOLUTION METHODS IN DMAA-LICL AND CHEMICAL PROPERTIES OF THE REGENERATED SAMPLES

  • Нина Ефимовна Котельникова Institute of Macromolecular Compounds, Russian Academy of Sciences, Bol'shoi av., 31, St. Petersburg, 199004 Email: nkotel@mail.ru
  • Юлия Владимировна Быховцова Institute of Chemistry, Komi Scientific Center, Ural Branch of the Russian Academy of Sciences, Pervomaiskaia st., 48, Syktyvkar, 167982 Email: ylya100287@mail.ru
  • Александра Михайловна Михаилиди Санкт-Петербургский государственный университет технологии и дизайна, ул. Б. Морская, 18, St. Petersburg, 191186 Email: amikhailidi@yahoo.com
  • Наталья Николаевна Сапрыкина Institute of Macromolecular Compounds, Russian Academy of Sciences, Bol'shoi av., 31, St. Petersburg, 199004 Email: elmic@hq.macro.ru
DOI_disc_logo https://doi.org/10.14258/jcprm.1401027
Keywords: Powder cellulose, dissolution, DMAA-LiCl, regeneration, swelling, SEM

Abstract

Comparative study of two methods to dissolve powder lignocelluloses obtained from wood lignocelluloses and short flax fibres in DMAA  LiCl was performed. DP values and lignin content in the samples significantly affect the solubility. The lower these values, the higher solubility of the samples. Solubility of the powder samples from wood lignocelluloses is similar independently on both methods. The particles of the samples under dissolution undergo degradation in the longitudinal direction at the fibrillar and at the molecular levels. The samples regenerated from solutions seem to be insoluble but exhibit high swelling capacities (from 250 to 490%). It could be explained that differently shaped particles have a developed system of pores.

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Author Biographies

Нина Ефимовна Котельникова, Institute of Macromolecular Compounds, Russian Academy of Sciences, Bol'shoi av., 31, St. Petersburg, 199004
ведущий научный сотрудник, доктор химических наук, тел.: +7 (812) 328-85-63
Юлия Владимировна Быховцова, Institute of Chemistry, Komi Scientific Center, Ural Branch of the Russian Academy of Sciences, Pervomaiskaia st., 48, Syktyvkar, 167982
младший научный сотрудник, тел.:  +7 (8212) 21-99-61
Александра Михайловна Михаилиди, Санкт-Петербургский государственный университет технологии и дизайна, ул. Б. Морская, 18, St. Petersburg, 191186
научный сотрудник, кандидат химических наук, тел.: +7 (911) 709-19-01
Наталья Николаевна Сапрыкина, Institute of Macromolecular Compounds, Russian Academy of Sciences, Bol'shoi av., 31, St. Petersburg, 199004
старший научный сотрудник, кандидат химических наук, тел.: +7 (812) 328-09-73

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How to Cite
1. Котельникова Н. Е., Быховцова Ю. В., Михаилиди А. М., Сапрыкина Н. Н. COMPARATIVE STUDY OF POWDER CELLULOSE DISSOLUTION METHODS IN DMAA-LICL AND CHEMICAL PROPERTIES OF THE REGENERATED SAMPLES // chemistry of plant raw material, 1. № 1. P. 27-36. URL: http://journal.asu.ru/cw/article/view/jcprm.1401027.
Issue
No 1 (2014)
Section
Biopolymers of plants

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