The graft copolymerization of poly (methyl methacrylate) [PMMA] onto wool initiated by the potassium persulfate-thiomalic acid (TMA) redox couple has been investigated in the presence of atmospheric oxygen. The percentage of grafting efficiency and polymerization as a function of initiator, activator, monomer, temperature, time, and wool was estimated. Evidence of grafting was confirmed by IR spectroscopy. It was observed that the grafting ranged from 25 to 70% depending upon the concentration of the redox system, the time, and the temperature.
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Shukla et al. (1984) studied this question.
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