Polymethylaluminoxane organic frameworks (sMAOF) – highly active supports for slurry phase ethylene polymerisation. Issue 16 (14th July 2021)

• Record Type: Journal Article
• Authors: Kilpatrick, Alexander F. R.; Geddes, Harry S.; Turner, Zoë R.; Buffet, Jean-Charles; Goodwin, Andrew L.; O'Hare, Dermot
• Is Part Of: Catalysis science & technology. Volume 11:Issue 16(2021)
• Page Start: 5472
• Page End: 5483
• Publication Date: 2021-07-14
• Subjects: Catalysis -- Periodicals; 541.395
• DOI: 10.1039/d1cy00767j
• Languages: English
• ISSNs: 2044-4753

Abstract

Abstract : A series of modified solid polymethylaluminoxane (sMAO) catalyst supports have been developed for slurry phase ethylene polymerisation, using aryl di-ol modifier groups. Abstract : A series of modified solid polymethylaluminoxane (sMAO) catalyst supports have been developed for slurry phase ethylene polymerisation, using aryl di-ol modifier groups. Characterisation using ICP-MS analysis, X-ray total scattering, SEM–EDX, diffuse FT-IR and solid state NMR spectroscopy shows that the organic linker groups are uniformly distributed in a proposed organic framework stucture we call a "sMAOF". When used as a support for rac -ethylene{bis(1-indenyl)} zirconium dichloride, (EBI)ZrCl2, these linker modified sMAOF materials provide a 40% enhancement in polymerisation activity with respect to unmodified sMAO: activities of 163 × 10 3 and 116 × 10 3 kgPE molZr −1 h −1 at 80 °C for (EBI)ZrCl2 supported on sMAOF(1, 4-HO(C6 F4 )OH) and sMAO, respectively. The observed activity increase is correlated with the higher BET surface area and increased porosity in the linker modified sMAOF activating support.