Abstract
THE intensity of depolarized light transmitted by a thin film of isotactic polypropylene, crystallizing isothermally on a polarizing microscope hot stage was followed using a photomultiplier unit with an appropriate recorder system1,2. For the slower rates of crystallization, the cathode ray oscillograph–camera arrangement was replaced by a Honeywell Brown m.V. recorder. All measurements were made within the linear operating range of the equipment.
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References
Magill, J. H., Nature, 187, 770 (1960).
Magill, J. H., Polymer, 2, 921 (1961).
Marker, L., Hay, P. M., Tilley, G. P., Early, R. M., and Sweeting, O. J., J. Polymer Sci., 38, 33 (1959).
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MAGILL, J. Crystallization of Isotactic Polypropylene using a Light Depolarization Technique. Nature 191, 1092–1093 (1961). https://doi.org/10.1038/1911092a0
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DOI: https://doi.org/10.1038/1911092a0
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