Chain walking: A new strategy to control polymer topology

  title={Chain walking: A new strategy to control polymer topology},
  author={Guan and Cotts and MccoRd and McLain},
  volume={283 5410},
Ethylene pressure has been used to control the competition between isomerization (chain walking) and monomer insertion processes for ethylene coordination polymerization catalyzed by a palladium-alpha-diimine catalyst. The topology of the polyethylene varies from linear with moderate branching to "hyperbranched" structures. Although the overall branching number and the distribution of short-chain branching change very slightly, the architecture or topology of the polyethylene changes from… CONTINUE READING
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