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Title
On the thermal stability of flax fabrics grafted with monochlorotriazinyl-B-cyclodextrin and treated with cinnamic derivatives
Authors
Ana-Maria Grigoriu Constantin Luca Gabriela Lisa and Aurelia Grigoriu
Received
March 12, 2009
Published
Volume 43 Issue 4-6 April-June
Keywords
monochlorotriazinyl-?-cyclodextrin, cinnamic derivatives, flax grafting, thermal analysis
Abstract
Cyclodextrins are among the most frequently used host molecules in inclusion compounds chemistry, with a wide applicability in different fields, including the textile industry. The thermal stability over the 25-900 °C temperature range of several flax samples grafted with monochlorotriazinyl-?- cyclodextrin and treated with cinnamic derivatives (ferulic acid, caffeic acid, ethyl ferulate) has been studied. The influence of the heating rate and atmosphere (air and nitrogen) under which the thermal degradation of the investigated samples occurred was also underlined. The thermal methods (TGA, DSC) applied to the flax grafted with MCT-?-CD and treated with different cinnamic derivatives have evidenced a complex mechanism of thermal degradation. The degradation mechanisms of the investigated flax samples are similar, consisting of two stages: in the former, the physically bonded water is removed (approximately 4%) while, in the latter, the mass loss is of about 75-80%.
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