Chromophores in Fibers, Pulp and other Cellulosic Materials

  • Novel chromophore isolation procedure (CRI method)
  • Investigation of chromophores and their formation mechanisms in pulps, fibers, cellulose derivatives in the ppm to ppb range
  • Studies on reaction mechanisms of color generation during natural and artificial yellowing and aging
  • Quantification of chromophores, covalently bound labels and linkers in pulps

Key publications:

  1. Rosenau, T.; Potthast, A.; Milacher, W.; Hofinger, A.; Kosma, P. Polymer 2004, 45, 6437-6443. Isolation and identification of residual chromophores in cellulosic materials.
  2. Rosenau, T.; Potthast, A.; Milacher, W.; Adorjan, I.; Hofinger, A.; Kosma, P. Cellulose 2005, 12, 197-208. Discoloration of cellulose solutions in N-methyl-morpholine-N-oxide (Lyocell). Part 2: Isolation and Identification of Chromophores.
  3. Rosenau, T.; Potthast, A.; Kosma, P.; Süss, H.-U.; Nimmerfroh, N. Holzforschung 2007, 61(6), 656 – 661. First isolation and identification of residual chromophores from aged bleached pulp samples.
  4. Rosenau, T.; Potthast, A.; Kosma, P.; Suess, H.U.; Nimmerfroh, N. TAPPSA J. 2008, 1, 54-61. Chromophores in Aged Hardwood Pulp – Their Structure and Degradation Potential.