Abstract
Polymerization of acetylene was found to take place on sulfated zirconia at room temperature, and the process has been followed by FTIR spectroscopy with the purpose of identifying both final products and intermediate species. The polymerization process is initiated on the surface OH groups with formation of H-bonded species which are then protonated to form a cationic monomer, C2H3 +. This monomer adds acetylene molecules from the gas phase giving rise to several oligomers which have a number of conjugated double bonds varying from 3 to 12, the oligomer with five double bonds being the most common.
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Escalona Platero, E., Penìarroya Mentruit, M. Acetylene polymerization on sulfated zirconia: detection of intermediates by infrared spectroscopy. Catalysis Letters 45, 59–63 (1997). https://doi.org/10.1023/A:1019051209059
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DOI: https://doi.org/10.1023/A:1019051209059