| http://www.w3.org/ns/prov#value | - In addition to sequential techniques to obtain triblocks, tetrablocks, and higher orders of repeating structures, anionic initiators can be used to prepare diblocks of styrene-polydiene having a reactive (live) chain end on the diene block which can be reacted through a coupling agent to create, for example, (S--I)x.Y or (S--B)x.Y structures wherein x is an integer from 2 to about 30, Y is a cou
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