Abstract
R. M. THOMAS et al.1 have stated that the presence of olefines diminishes the yield of the low-temperature polymerization of isobutene by Friedel–Crafts catalysts and also reduces the molecular weight of the product. Plesch, Polanyi and Skinner2 have reported that ethanol or diethyl ether inhibit the same reaction when using titanium chloride (TiCl4) and traces of water as catalyst, even if the titanium chloride is in excess of the inhibitor ; and Plesch3 has shown acetic acid to be an inhibitor. Norrish and Russell4 have reported that the rate of the low-temperature polymerization by stannic chloride is decreased by ethanol, t-butanol, diethyl ether, acetone, butene-1 and butene-2, and that the first four of these substances also reduced the molecular weight of the product.
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References
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HORREX, C., PERKINS, F. Inhibition of the Low-Temperature Polymerization of isoButene. Nature 163, 486–487 (1949). https://doi.org/10.1038/163486a0
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DOI: https://doi.org/10.1038/163486a0
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