Abstract
THE particle generator made by us is the outgrowth of work by Melville1, in which he studied the photo-polymerization of methyl acrylate and methyl methacrylate vapour at low pressures in a closed chamber in which no other gas was present. On irradiation with ultra-violet light in the 2500 Å. region, a fairly dense cloud of particles is formed in the chamber. The ultra-violet light activates the monomer and small nuclei are formed, that is, a few molecules of polymer on which the remaining monomer gas can react. Once the reaction is initiated, it will continue without further irradiation.
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References
Melville, A. W., Proc. Roy. Soc., A, 167, 99 (1938); A, 163, 511 (1937).
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PEARSON, R., LANGER, G. Generation of Aerosols by Vapour-Phase Polymerization of Methyl Acrylate. Nature 187, 235 (1960). https://doi.org/10.1038/187235a0
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DOI: https://doi.org/10.1038/187235a0
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