PURIFICATION OF POLYCARBONATES
First Claim
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1. A method of removing a catalyst from a product of an aliphatic polycarbonate polymerization reaction that was catalyzed by the catalyst, the method comprising contacting the product of the polymerization reaction with a solid phase comprising an ion exchanger, wherein the catalyst comprises a transition metal-ligand complex.
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Abstract
The present disclosure provides, in part, a method for removing a catalyst from a product of catalyzed aliphatic polycarbonate polymerization reaction.
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Citations
58 Claims
- 1. A method of removing a catalyst from a product of an aliphatic polycarbonate polymerization reaction that was catalyzed by the catalyst, the method comprising contacting the product of the polymerization reaction with a solid phase comprising an ion exchanger, wherein the catalyst comprises a transition metal-ligand complex.
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58. A method of purifying a product of an aliphatic polycarbonate polymerization reaction, the method comprising steps of:
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1. contacting the product of the polymerization reaction with a first solid phase comprising an acidic ion exchanger; and 2. subsequently contacting the product of the polymerization reaction with a second solid phase comprising a basic ion exchanger.
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Specification