Epoxy resins cured with ionic liquids as novel supports for metal complex catalysts

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• 作者：Sylwia Ostrowska ; Bartosz Markiewicz ; Karolina W?sikowska ; Natalia B?czek ; Juliusz Pernak ; Krzysztof Strzelec
• 关键词：Epoxy resin ; Heterogeneous catalysis ; Supported catalysts ; Coordination modes ; Curing agent ; Ionic liquids ; Heck reaction
• 刊名：Comptes Rendus Chimie
• 出版年：2013
• 出版时间：August, 2013
• 年：2013
• 卷：16
• 期：8
• 页码：752-760
• 全文大小：1354 K

文摘

In this work, the application of an epoxy resin cured with ammonium ionic liquids as a support for palladium complex catalyst is reported. Supports based on epoxy resin were obtained as a result of the use of ionic liquids: didecyldimethylammonium tetrafluoroborate [d₂m₂am][BF₄], 1-methyltheobromine tetrafluoroborate [mthb][BF₄], didecyldimethylammonium theobrominate [d₂m₂am][thb], didecyldimethylammonium theophyllinate [d₂m₂am][thp] as cross-linking agents. The characterization of polymeric supports and heterogenized palladium catalysts has involved research methods like time-of-flight secondary ion mass spectrometry (TOF-SIMS), infrared spectroscopy (IR), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS). The activity and stability during long-term use of the investigated catalytic systems were tested in a model Heck reaction. The influence of the type of ILs used as epoxy hardeners on the catalytic properties of epoxy-supported palladium catalysts is discussed.