The multi branched diene polymers obtained by gas phase anionic polymerization employing the catalysts exhibit desirable properties, such as an extremely high molecular weight, a controlled molecular weight distribution, Tg and vinyl content, and {HEAD ~ the ability} to readily absorb {TAIL ~ hydrocarbon solvents} and oils 
The multi branched diene polymers obtained by gas phase anionic polymerization employing the catalysts exhibit desirable properties , such as an extremely high molecular weight , a controlled molecular weight distribution , Tg and vinyl content , and { HEAD ~ the ability } to readily absorb { TAIL ~ hydrocarbon solvents } and oils
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