The synthesis of precision polyethylene possessing Siloxy groups attached at exact locations along the polymer backbone through Acyclic Diene Metathesis (ADMET) will be discussed. Such polymers could be useful as extruding aids or additives during polymer extrusion. Two parameters will be studied in order to determine the most suitable polymer for such applications:1)    The Siloxy branch frequency2)    The Siloxy branch sizeA compromise between these two parameters would have to be found in such way that the polyethylene from the additive will crystallize with the polyethylene being processed, while the siloxy groups will find themselves at the surface because of their much lower surface tension. This will allow the siloxy groups to act as a slippery agent reducing the defects that are found during the extrusion process. These additives would remain part of the polymer itself through co-crystallization.

Polyolefins possessing Siloxy groups for use as extruding aids

243rd National Meeting (2012)

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