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3 Results Found

  • Article
  • Open Access
1,344 Views
13 Pages

4 August 2025

Tocopheramines are a class of antioxidants which are distinguished from tocopherols (vitamin E) by the presence of an amino group instead of the phenolic hydroxyl group. α-Tocopheramine is intensively studied for biomedical applications but als...

(This article belongs to the Special Issue 10th Anniversary of Green Chemistry Section)
  • Article
  • Open Access
1 Citations
1,253 Views
10 Pages

12 March 2025

α-Tocopheramine and N-methyl-α-tocopheramine are used as stabilizers in the spinning of cellulosic fibers from solutions in 1,3-dialkylimidazolium ionic liquids. Upon aging, they form chromophoric degradation products, among which the spi...

(This article belongs to the Special Issue 10th Anniversary of Green Chemistry Section)
  • Article
  • Open Access
12 Citations
5,568 Views
16 Pages

Fiber Spinning from Cellulose Solutions in Imidazolium Ionic Liquids: Effects of Natural Antioxidants on Molecular Weight, Dope Discoloration, and Yellowing Behavior

  • Hubert Hettegger,
  • Jiaping Zhang,
  • Mitsuharu Koide,
  • Uwe Rinner and ,
  • Antje Potthast,
  • Yasuo Gotoh and
  • Thomas Rosenau
  • + 2 authors+ 0 author

7 June 2022

Spinning of cellulosic fibers requires the prior dissolution of cellulose. 3-Alkyl-1-methylimidazolium ionic liquids have proven to be suitable solvents for that purpose, but the degradation of cellulose in the spinning dope can be severe. Suitable s...