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ALIPHATIC POLYCARBONATE QUENCH METHOD

  • US 20110207899A1
  • Filed: 09/17/2009
  • Published: 08/25/2011
  • Est. Priority Date: 09/17/2008
  • Status: Active Grant
First Claim
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1. A method comprising:

  • initiating an aliphatic polycarbonate polymerization reaction by combining an epoxide with carbon dioxide in the presence of a catalytic transition metal-ligand complex to form a reaction mixture comprising a polycarbonate chain; and

    quenching the polymerization reaction by contacting the reaction mixture with an acid containing an anion that is not a polymerization initiator.

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