Studies into cross-linking and the prevention of Lyocell fibrillation
Synthesis of novel dyes and cross-linking agents
Development of new fiber products (chemically modified fibers, slow-release products, fibers carrying drugs)
Identification of chromophores on cellulosic fibers (cf. “Chromophores”)
Key publications:
Xu, J.; Rosenau, T.; Renfrew, A. H. M.; Phillips, D. A. S.; Maudru, E. Coloration Technology2004, 6, 316-319. Modification of cellulose with N-(2-chloroethyl)-diethylamine*HCl: Mechanism of improved dyeability with 5-chloro-2,4-difluoropyrimidinyl dyes.
Rosenau, T.; Renfrew, A. H. M.; Adelwöhrer, C.; Potthast, A.; Kosma, P. Polymer 2005, 46, 1453-1458. Cellulosics modified with slow-release reagents. Part I. Synthesis of triazine-anchored reagents for slow release of active substances from cellulosic materials.
Sjöberg, J.; Potthast, A.; Rosenau, T.; Kosma, P.; Sixta, H. Biomacromolecules2005, 6(6), 3146-3151. Cross-sectional analysis of the polysaccharide composition in cellulosic fiber materials by enzymatic peeling and high-performance capillary zone electrophoresis (HPCE).
Kampyli, V.; Maudru, E.; Phillips, D. A. S.; Renfrew, A. H. M.; Rosenau, T. Dyes and Pigments 2006, 74(1), 181-186. Triazinyl reactive dyes for the exhaust dyeing of cotton: Influence of the oxido group on the reactivity of chloro and m-carboxypyridinium leaving groups.
Bates, I.; Phillips, D. A. S.; Renfrew, A. H. M.; Rosenau, T. Color. Technol.2007, 123, 18-23. Protection of lyocell against fibrillation. Part 2: Application of 4,6-(p-b-sulphato-ethylsulphonyl)anilino-1,3,5-triazin-2(1H)-one to lyocell by an exhaust process.
Renfrew, A. H. M.; Bates, I.; Phillips, D. A. S.; Rosenau, T. ; Tomica, T.; Xu, J. Color. Technol.2008, 124, 56-61. Functionalisation of lyocell. Part 2: Synthesis of 6-p-aminoanilino-4-p-(b-sulphato-ethylsulphonyl)anilino-1,3,5-triazin-2(1H)-one.