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Effect of solvents on gamma radiation induced graft copolymerization of methyl methacrylate onto polypropylene

✍ Scribed by Eman M. El-Nesr

Publisher
John Wiley and Sons
Year
1997
Tongue
English
Weight
160 KB
Volume
63
Category
Article
ISSN
0021-8995

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✦ Synopsis

SYNOPSIS

Methyl methacrylate was grafted onto polypropylene films using gamma radiation. Effects of different parameters, such as radiation dose, inhibitor concentration, monomer concentration, and type of solvents on the graft yield were investigated. It was established that the graft yield depends on the proper choice of solvent mixtures, and its maximum value can be obtained by using decalin/methanol mixture in the ratio 2 : 3 wt %. Thermal characteristics using differential scanning calorimetry shows that grafting has practically no effect on the crystallinity of PP.

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Polypropylene (PP) Ðlms were grafted with N-phenylmaleimide using c-radiation. The e †ect of both monomer concentration and dose rate on the degree of grafting was measured. Characterization of the grafted PP Ðlms included IR spectroscopy, X-ray spectroscopy, electrical conductivity, mechanical prop