Letter | Published:

Polymerization of Liquids by Irradiation with Neutrons and other Rays

Nature volume 143, page 640 (15 April 1939) | Download Citation



IN continuation of previous work on the effects of radiations on liquids1, we have for some time been investigating the action of neutrons, alpha-, beta- and gamma-rays in inducing polymerization of a number of hydrocarbon compounds. Of the different methods used for observing the rate of polymerization—changes in colour, refractive index, viscosity, streaming polarization, etc.—we have found it convenient to follow the changes in density consequent on irradiation by means of a volume dilatometer. The sources of radiation were sometimes placed inside the bulb of the dilatometer, and sometimes surrounded it.

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  1. 1.

    and , NATURE, 136, 1028 (1935). and , Proc. Phys. Soc., 50, 438 (1938).

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  1. Medical College, St. Bartholomew's Hospital, London, E.C.1. March 31.

    • F. L. HOPWOOD
    •  & J. T. PHILLIPS


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