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Synlett 2020; 31(07): 641-647
DOI: 10.1055/s-0039-1690778
DOI: 10.1055/s-0039-1690778
synpacts
Ultrahigh-Molecular-Weight Poly(propylene oxide): Preparation and Perspectives
S.N. gratefully acknowledges financial support from the DFG (German Research Foundation), project numbers NA 1206/2 and 358283783 (CRC 1333).Further Information
Publication History
Received: 04 November 2019
Accepted after revision: 05 December 2019
Publication Date:
18 December 2019 (online)
Abstract
Conventional approaches for polymerizing substituted epoxides, especially propylene oxide, suffer from side reactions, severely limiting molar masses and control over the end groups of the resulting poly(propylene oxide) (PPO). This has not only complicated the incorporation of PPO moieties into complex defined polymer architectures, but has also hampered consideration of PPO as an interesting material in its own right. In this context, a concise summary of strategies for creating truly high-molecular-mass polyethers is provided, with a focus on a recently developed dual catalytic setup that permits access to PPO molar masses of 106 g/mol and beyond. Based on these advances in the catalytic preparation of polyethers, future perspectives for ultrahigh-molecular-weight (UHMW) PPO as a performance material are identified.
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