Abstract
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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References
- 1.
Hopwood and Phillips, NATURE, 136, 1028 (1935). Hopwood and Phillips, Proc. Phys. Soc., 50, 438 (1938).
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Affiliations
Medical College, St. Bartholomew's Hospital, London, E.C.1. March 31.
- F. L. HOPWOOD
- & J. T. PHILLIPS
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