Abstract
A tri-functional monomer, N,N'-dimethylol-itaconamide (DIMIA) gave excellent wash-wear properties to cotton fabric. The cross-linking and polymerization mechanisms were investigated. The acid catalysts, MgCl2 and Zn(BF4)2, have been used to react the methylol groups of the reagent with cellulose hydroxyls while peroxide catalysts (free radical initiators) such as ammonium or potassium persulfates and H2O2 were examined for double bond polymerization. Mixtures of the two types of catalysts were also tested. The persulfates apparently are able to cause both etherification and polymerization. though they are surpassed by Zn(BF4)2. It is suggested that such a mixed catalyst system could be used in delayed cure wash-wear processes. The methylol groups of DIMIA reacted with the hydroxyl groups of cellulose in presence of acidic catalysts MgCl2 or Zn(BF 4)2. The double bonds of DIMIA polymerized in cellulose in presence of peroxide catalysts APS, KPS, or H2O2. Only etherifications of dimethylol groups of DIMIA and cellulose hydroxyls can cross-link the cellulose, but the combination of the etherification and the polymerization is particularly effective for improving the crease recovery and wash-wear properties of cotton fabric.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
