Abstract
CDs were grafted onto PET fibers by the intermediate of polycarboxylic acids thatplayed the role of crosslinking agents. We evidenced that grafting occurred despitethat no reaction could happen between the polycarboxylic acids and PET. It wasconcluded that the mode of grafting occurred through the formation of a crosslinkedcopolymer between PCA and CDs. This copolymer was not covalently fixed to thefibers, but physically adhered or was entangled into the fibrous network so that grafting was resistant to washings and was permanent. We report that the grafting rate depended on (i) temperature of curing; (ii) time of curing; (iii) the ratio PCA/CD. In the most drastic conditions, the weight increase of the fabrics due to the graft reaction could reach 25–30%-wt. α, β, γ-CDs and HP-β-CD successfully reacted but not RAMEB because of its reduced number of free hydroxyl groups available for the esterification reaction.
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Martel, B., Morcellet, M., Ruffin, D. et al. Finishing of Polyester Fabrics with Cyclodextrins and Polycarboxylic Acids as Crosslinking Agents. Journal of Inclusion Phenomena 44, 443–446 (2002). https://doi.org/10.1023/A:1023080221850
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DOI: https://doi.org/10.1023/A:1023080221850