Journal of Applied Polymer Science, Vol.80, No.3, 438-446, 2001
Synthesis of a vinyl monomer containing beta-cyclodextrin and crafting onto cotton fiber
To chemically bond beta -cyclodextrin (beta -CD), which can form inclusion complexes, acrylamidomethyl CD (CD-NMA) obtained from the acid-catalyzed reaction of N-methylolacrylamide (NMA) and beta -CD was grafted onto cellulose fibers using CeIV as the initiator. The double-bond content of CD-NMA increased with increase in the NMA/CD mol ratio, and a CD-NMA containing a maximum of three molecules of NMA bonded to a CD molecule could be obtained. Since the grafting condition is acidic, the hydrolytic stability of CD-NMA in aqueous nitric acid was studied. The temperature of hydrolysis proved to have a greater effect on the depletion of double bonds from CD-NMA compared with the concentration of the acid. Thus, CD-NMA was grafted onto cellulose fibers at a low temperature, and FTIR analysis of the CD-NMA-grafted cotton fibers confirmed the chemical bonding of CD-NMA molecules to cellulose.