✦ LIBER ✦
DMAP/Cr(III) Catalyst Ratio: The Decisive Factor for Poly(propylene carbonate) Formation in the Coupling of CO2 and Propylene Oxide
✍ Scribed by Robert Eberhardt; Markus Allmendinger; Bernhard Rieger
- Publisher
- John Wiley and Sons
- Year
- 2003
- Tongue
- English
- Weight
- 68 KB
- Volume
- 24
- Category
- Article
- ISSN
- 1022-1336
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
Highly efficient formation of poly(propylene carbonate) can be achieved in the coupling of CO~2~ and propylene oxide assisted by 4‐(N,N‐dimethylamino)pyridine (DMAP) and catalyzed with salen chromium(III) chloride by using DMAP/Cr ratios of less than 2. Under these conditions a possible backbiting mechanism is suppressed, leading to only minor amounts of cyclic carbonate as a side product.
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