Question: When styrene, C6H5CH = CH2, is copolymerized in the presence of a few percent p-divinyl benzene, a hard, insoluble, cross-linked polymer is obtained. Show how

When styrene, C6H5CH = CH2, is copolymerized in the presence of a few percent p-divinyl benzene, a hard, insoluble, cross-linked polymer is obtained. Show how this cross-linking of polystyrene chains occurs.

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