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SinceIshiharaetal[1 ] reportedthatanewmacromoleculesyndiotactic polystyrene (s PS )couldbeproducedwithhighstereoregularitybyus ing (η5 ?
Since Ishihara et al [1] reportedthatanewmacromoleculesyndiotactic polystyrene (s PS) could not be produced withhighstereoregularitybyus ing (η5?