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Use of Sodium Iodide as the Precursor to the Control Agent in Ab Initio Emulsion Polymerization

Authors

  • Jeff Tonnar Dr.,

    1. Institut Charles Gerhardt—UMR 5253 CNRS/UM2/ENSCM/UM1, Ingénierie et Architectures Macromoléculaires, Ecole Nationale Supérieure de Chimie de Montpellier, 8 rue de l'Ecole Normale, 34296 Montpellier Cedex 5, France, Fax: (+33) 4-6714-7220
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  • Patrick Lacroix-Desmazes Dr.

    1. Institut Charles Gerhardt—UMR 5253 CNRS/UM2/ENSCM/UM1, Ingénierie et Architectures Macromoléculaires, Ecole Nationale Supérieure de Chimie de Montpellier, 8 rue de l'Ecole Normale, 34296 Montpellier Cedex 5, France, Fax: (+33) 4-6714-7220
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  • Frédéric Delolme (CNRS-SCA Vernaison) is acknowledged for performing MALDI-TOF analyses.

Abstract

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Iodide does the job: Water-soluble, harmless, cheap, and nonhazardous NaI was used in combination with K2S2O8 instead of I2 itself to produce an uncolored living poly(butyl acrylate) latex of controlled molecular weight by a single-step polymerization process (see scheme for one polymerization pathway). Reactivation of the polymer then yielded a block-copolymer latex. BuA=butyl acrylate.

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