Dynamic rheology, UV/VIS spectrometry with temperature programming cuvette and reaction calorimetry were conducted on cellulose pulp/FeTNa (NaOH solution containing ferric tartaric acid complex) solutions to investigate their thermostability and spinnability. Color of cellulose/FeTNa solutions changed above 90°C due to the decomposition of the complex. Thermal activity of cellulose/FeTNa solution started above 130°C induced by water vapor evolution and complex decomposition. Regeneration of cellulose/FeTNa solutions in a non-solvent (acetic acid and Na-gluconate mixture) resulted in transition from cellulose I into cellulose II structure as revealed by WAXS measurements. Wet-spinning attempts of cellulose/FeTNa solutions yielded fiber-like shaped bodies with a brittle structure.
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| http://dx.doi.org/10.1016/j.carbpol.2011.07.038 | DOI Listing |
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Investigation of the spinnability of cellulose/alkaline ferric tartrate solutions.
Carbohydr Polym
January 2012
Research Institute of Textile Chemistry and Textile Physics, University of Innsbruck, Hoechsterstr. 73, A-6850 Dornbirn, Austria. Electronic address:
Dynamic rheology, UV/VIS spectrometry with temperature programming cuvette and reaction calorimetry were conducted on cellulose pulp/FeTNa (NaOH solution containing ferric tartaric acid complex) solutions to investigate their thermostability and spinnability. Color of cellulose/FeTNa solutions changed above 90°C due to the decomposition of the complex. Thermal activity of cellulose/FeTNa solution started above 130°C induced by water vapor evolution and complex decomposition.
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