Unsaturated Alcohols as Chain-Transfer Agents in Olefin Polymerization: Synthesis of Aldehyde End-Capped Oligomers and Polymers
| Autor: | Xingwang Han, Olafs Daugulis, Maurice Brookhart |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
inorganic chemicals
chemistry.chemical_classification Chemistry chemistry.chemical_element Chain transfer General Chemistry Polymer 010402 general chemistry 01 natural sciences Biochemistry Aldehyde Catalysis 0104 chemical sciences Colloid and Surface Chemistry Polymerization Polymer chemistry Olefin polymerization Palladium |
| Zdroj: | Journal of the American Chemical Society. 142:15431-15437 |
| ISSN: | 1520-5126 0002-7863 |
| DOI: | 10.1021/jacs.0c06644 |
| Popis: | Palladium diimine-catalyzed polymerization of olefins using unsaturated alcohols as chain-transfer agents has been demonstrated. The reaction affords aldehyde end-capped polymers whose molecular weight can be tuned by varying the ratio of olefin/chain-transfer agent. Notably,95% efficient end capping with aldehyde can be achieved under optimized conditions. This end-capping procedure is a rare example of introducing a highly reactive and versatile terminal functionality in polyolefin chains using a functional group-tolerant late metal catalyst. The reactivity of these end-capped polymers is illustrated here via functionalization with dyes to yield colored, hydrocarbon-soluble polyolefin derivatives. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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