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Gamma radiation induced graft copolymerization of acrylamide onto poly(vinyl chloride) films

✍ Scribed by El-Nesr, E. M.; Dessouki, A. M.; Abdel-Bary, E. M.

Publisher
John Wiley and Sons
Year
1998
Tongue
English
Weight
300 KB
Volume
46
Category
Article
ISSN
0959-8103

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✦ Synopsis

Grafting of acrylamide (AAm) onto poly(vinyl chloride) (PVC) Ðlms using gamma radiation has been carried out. The e †ects of di †erent parameters on the graft yield have been investigated. These parameters include radiation dose, monomer concentration, solvent composition, types of inhibitors and acidity of the medium. In addition, the e †ects of the multifunctional monomers N,N@-methylene allyl amide (MAAm) and 2,4,6-triallyloxy-1,3,5 triazine (TARA) on the graft yield have been investigated. It has been found that methanol/water mixture in the ratio (1 : 1) is the proper diluent mixture for enhancing the graft copolymerization process. The presence of sulphuric acid in the reaction medium adversely a †ects the graft yield more than acetic acid. The presence of MAAm in the reaction medium markedly increases the graft yield, while TARA has practically no e †ect on the grafting process. Grafted Ðlms have been characterized and evidence of grafting has been obtained using thermal and spectroscopic analysis together with swelling measurements in water.

1998 SCI.

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