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Grafting of poly(acrylonitrile) onto guar gum using potassium persulfate/ascorbic acid redox initiating system

✍ Scribed by U. D. N. Bajpai; Veena Mishra; Sandeep Rai


Publisher
John Wiley and Sons
Year
1993
Tongue
English
Weight
370 KB
Volume
47
Category
Article
ISSN
0021-8995

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✦ Synopsis


OPSlS

The grafting of poly(acrylonitri1e) onto guar gum in aqueous medium initiated by the potassium presulfate/ascorbic acid redox system has been studied gravimetrically at the temperature of 35 + 0.2"C in the presence of atmospheric oxygen. A plausible mechanism of graft copolymerization has been suggested on the basis of experimental results. The effect of grafting on the water and saline retention capacities has been studied and compared with the values obtained for ungrafted guar gum.


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Persulfate/ascorbic acid initiated synth
✍ Vandana Singh; Devendra Narayan Tripathi; Tulika Malviya; Rashmi Sanghi πŸ“‚ Article πŸ“… 2009 πŸ› John Wiley and Sons 🌐 English βš– 256 KB πŸ‘ 1 views

## Abstract Acrylonitrile was grafted on to tamarind seed gum using persulfate/ascorbic acid redox initiator and a representative sample of the graft copolymer (Tm‐__g__‐PAN) was characterized using infrared spectroscopy (FTIR), X‐ray diffraction (XRD) and scanning electron microscopy (SEM). Grafti