Metathesis polydispersity index

The polydispersity index for precursor polymers prepared via the Durham route was only in the range of 1.8-2.8 [88]. Krouse and Schrock were able to improve on the metathesis ROMP method and prepared a series of acetylene block copolymers with success both in controlling the molecular weight and in achieving low polydispersity [82]. Compared to a living polymerization process, the well-controlled ROMP precursor polymers can be grown continuously... 

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