Abstract
THE graphs below refer to results we have obtained for the magnetic susceptibility of dimethylbutadiene at the commencement of polymerization. Fig. 1 is for the mass susceptibilities of samples of dimethylbutadiene distilled and sealed in nitrogen, and polymerized in the dark by heat at a temperature of 140° C. Fig. 2 is for a similar treatment of dimethylbutadiene distilled and sealed in vacuo. It will be noticed that in the absence of catalyst there is a fall in diamagnetism over the first three hours and that thereafter there is a progressive rise in diamagnetism as is to be expected1.
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References
Farquharson, Trans. Faraday Soc., 32, 219 (1936).
Dostal and Mark, Trans. Faraday Soc., 33, 350 (1933).
Stoner, "Magnetism and Matter", 477.
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FARQUHARSON, J., ADY, P. Magnetism and Polymerization. Nature 143, 1067–1068 (1939). https://doi.org/10.1038/1431067c0
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DOI: https://doi.org/10.1038/1431067c0
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