Creation of reactive centers on cotton. IV. Reaction of acrylamidomethylated cotton with some sulfur compounds
✍ Scribed by M. Kamel; A. Hebeish; A. Al-Aref
- Publisher
- John Wiley and Sons
- Year
- 1974
- Tongue
- English
- Weight
- 519 KB
- Volume
- 18
- Category
- Article
- ISSN
- 0021-8995
No coin nor oath required. For personal study only.
✦ Synopsis
The addition of mercaptoethanol and hydrogen sulfide to the pendent double bonds of acrylamidomethylated cotton (AMC) has been investigated. The interaction of acrylonitrile with the modified celluloses so obtained (substrate I and 11) and with AMC treated with ammonium hydroxide (substrate 111) in the presence of Ce(1V) is studied. Substrate I shows higher initial grafting yields than AMC; the opposite holds true for the maximum graft yields. The graft yields obtained with substrate I1 are lower than those of AMC. All modified cottons studied are less amenable to grafting compared with the unmodified cotton. The graft yields of AMC and substrate I11 are comparable due to the fact that both substrates are crosslinked. Probable reasons for the inferior reactivity of substrates I and I1 are also given.