Abstract
Abstract The radiation-induced grafting of ethyl vinyl ether to polypropylene film in bulk has been investigated under super-dry conditions. The per cent grafting increased linearly with increasing dose without an induction period. The grafting did not take place in the presence of traces of water, indicating that the grafting proceeds by an ionic mechanism. The dose-rate dependence of the rate of grafting was found to be 0.25. The grafting was also examined in n-pentane and neopentane solutions. Although the per cent grafting in the solution system was lower than that in the bulk system, n-pentane was found to increase the grafting efficiency.
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