Biphasic Seeded Emulsion Polymerization in a Tubular Flow Reactor

Alexander G. Horn, Thomas C. Johnston, Damien Guironnet

Research output: Contribution to journalArticlepeer-review

Abstract

A novel procedure for the production of polymer latex in a flow tubular reactor capable of achieving high solids content latex (>30 wt %) is reported herein. The novelty of this approach consists of using a biphasic solution - aqueous phase containing polymer seed and a pure monomer organic phase - without pre-emulsification and feeding this solution slowly in a heated tubular reactor (slug flow). The polymerization was conducted over multiple stages to allow the addition of precise quantities of surfactant. The surfactant loading needed for stabilization - without causing secondary nucleation - was determined as a function of the latex particles' sizes through a series of batch experiments. Using this multistage polymerization strategy, poly(methyl methacrylate) latexes with a solids content of 35 wt % (131 nm) were successfully produced with no noticeable fouling of the reactor.

Original languageEnglish (US)
Pages (from-to)10389-10396
Number of pages8
JournalIndustrial and Engineering Chemistry Research
Volume59
Issue number22
DOIs
StatePublished - Jun 3 2020

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Industrial and Manufacturing Engineering

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