| 摘要 |
<p>A living carbocationic catalyst composition comprising an initiator of a tertiary alkyl halide, a tertiary aralkyl halide or polymeric halide, a co-initiator of a methylaluminum or methylboron compound, an optional proton scavenger and a solvent medium with a dielectric constant between 2.5 and 7 is used to produce narrow molecular weight distribution polymers, particularly isobutylene polymers.</p> |
