Emulsion Polymerization of Vinyl Monomers under the Influence of Ionizing Radiation | Zendy

Hummel D. | Zendy

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Emulsion Polymerization of Vinyl Monomers under the Influence of Ionizing Radiation

Author(s) -

Hummel D.

Publication year - 1963

Publication title -

angewandte chemie international edition in english

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 5.831

H-Index - 550

eISSN - 1521-3773

pISSN - 0570-0833

DOI - 10.1002/anie.196302951

Subject(s) - emulsion polymerization , polymerization , emulsion , ionizing radiation , kinetics , monomer , polymer chemistry , styrene , bulk polymerization , chemistry , chemical kinetics , irradiation , reaction rate , materials science , chemical engineering , radical polymerization , polymer , organic chemistry , copolymer , catalysis , physics , quantum mechanics , nuclear physics , engineering

Ionizing radiation induces the polymerization of some vinyl monomers in aqueous emulsion with high radiation yields. With identical emulsion compositions, the kinetics of this reaction and the kinetics of emulsion polymerization induced by water‐soluble initiators are very similar. The rate of reaction in emulsion polymerization is about one hundred times greater than in bulk polymerization. The initiation of emulsion polymerization by means of ionizing radiation permits uniform “illumination” of the reacting volume, as well as almost any desired variation in the frequency of initiation during the reaction. The sharp decrease in the overall rate of reaction when initiation is interrupted during emulsion polymerization of styrene induced by γ‐rays contradicts the earlier concept of sharply separated reaction zones.

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