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 hydrocarbon solvents and {TAIL ~ oils} 
to readily absorb
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 hydrocarbon solvents and { TAIL ~ oils }
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