We report the evaluation andattempted removal of residual catalyst species from polymers prepared byROMP.  Using a model polymer backbone, itwas determined that a single precipitation produced polymer containing 240 ppmresidual catalyst.  Additionalprecipitations lowered the metal content to 140 ppm.  Additional purification protocols developedfor catalyst removal in small molecule organic synthesis were explored in anattempt to reduce the trace catalyst content to more acceptable levels.  Several of the methods employed reduced the toresidual catalyst content to 100 ppm.

Analysis and removal of residual catalyst from ROMP based polymers

239th National Meeting (2010)

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