91Ó°ÊÓ

The following two compounds form a 1: 1 alternating copolymer. No initiator is needed for the polymerization. Propose a mechanism for the formation of the copolymer.

Draw a segment of polystyrene that contains two head-to-head, two tail-to-tail, and two head-to-tail linkages.

Show the mechanism for the formation of a segment of poly(vinyl chloride) that contains three units of vinyl chloride and is initiated by hydrogen peroxide.

Draw a short segment of branched polystyrene.

Rank the following groups of monomers from most able to least able to undergo cationic polymerization:

Why does methyl methacrylate not undergo cationic polymerization?