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  • Costa, CarolinaMid Sweden University,Mittuniversitetet,Institutionen för kemiteknik,FSCN (author)

Lignin enhances cellulose dissolution in cold alkali

  • Article/chapterEnglish2021

Publisher, publication year, extent ...

  • Elsevier BV,2021
  • electronicrdacarrier

Numbers

  • LIBRIS-ID:oai:DiVA.org:miun-43208
  • https://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-43208URI
  • https://doi.org/10.1016/j.carbpol.2021.118661DOI
  • https://lup.lub.lu.se/record/97e785d2-cb4e-4477-8176-d4396765ec2fURI

Supplementary language notes

  • Language:English
  • Summary in:English

Part of subdatabase

Classification

  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • Aqueous sodium hydroxide solutions are extensively used as solvents for lignin in kraft pulping. These are also appealing systems for cellulose dissolution due to their inexpensiveness, ease to recycle and low toxicity. Cellulose dissolution occurs in a narrow concentration region and at low temperatures. Dissolution is often incomplete but additives, such as zinc oxide or urea, have been found to significantly improve cellulose dissolution. In this work, lignin was explored as a possible beneficial additive for cellulose dissolution. Lignin was found to improve cellulose dissolution in cold alkali, extending the NaOH concentration range to lower values. The regenerated cellulose material from the NaOH-lignin solvents was found to have a lower crystallinity and crystallite size than the samples prepared in the neat NaOH and NaOH-urea solvents. Beneficial lignin-cellulose interactions in solution state appear to be preserved under coagulation and regeneration, reducing the tendency of crystallization of cellulose. 

Subject headings and genre

Added entries (persons, corporate bodies, meetings, titles ...)

  • Medronho, BrunoMid Sweden University,Mittuniversitetet,Institutionen för kemiteknik,University of Algarve, Portugal,FSCN(Swepub:miun)brumed (author)
  • Eivazi, AlirezaMid Sweden University,Mittuniversitetet,Institutionen för kemiteknik,FSCN(Swepub:miun)alieiv (author)
  • Svanedal, Ida,1979-Mid Sweden University,Mittuniversitetet,Institutionen för kemiteknik,FSCN(Swepub:miun)idahog (author)
  • Lindman, BjörnLund University,Lunds universitet,Mittuniversitetet,Institutionen för kemiteknik,FSCN,Fysikalisk kemi,Enheten för fysikalisk och teoretisk kemi,Kemiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Physical Chemistry,Physical and theoretical chemistry,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH,University of Coimbra(Swepub:lu)fk1-bli (author)
  • Edlund, Håkan,1966-Mid Sweden University,Mittuniversitetet,Institutionen för kemiteknik,FSCN(Swepub:miun)hakedl (author)
  • Norgren, Magnus,1967-Mid Sweden University,Mittuniversitetet,Institutionen för kemiteknik,FSCN(Swepub:miun)magnno (author)
  • MittuniversitetetInstitutionen för kemiteknik (creator_code:org_t)

Related titles

  • In:Carbohydrate Polymers: Elsevier BV2740144-86171879-1344

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