Preparation of latexes with poly(methylcrylate) cores and hydrophilic polymer shells containing amino groups

Pei Li, Junmin Zhu, Panya Sunintaboon, Frank W. Harris

Research output: Journal article publicationJournal articleAcademic researchpeer-review

19 Citations (Scopus)

Abstract

Functional latexes with poly(methyl methacrylate) (PMMA) cores and amino-containing, water-soluble polymer shells were synthesized via direct graft copolymerization of methyl methacrylate from water-soluble polymers induced by a small amount of tert-butyl hydroperoxide (TBHP) at 80°C for 2h. Amphiphilic graft copolymers and PMMA homopolymers were generated concurrently to form highly monodispersed latexes. The effects of water-soluble polymer containing different amino group, reaction temperature, TBHP concentration, molecular weight of the polymer and pH of the solution on conversion and grafting efficiency of the monomer and particle size were investigated. Transmission electron microscopic images of the PMMA/poly(ethyleneimine) (PEI) and PMMA/poly(allylamine) (PAA) particles clearly show well-defined core-shell morphologies, where PMMA cores are coated with either PEI or PAA shell. The amino-containing polymer shells were also confirmed with zetapotential measurements. Furthermore, the amino-containing latexes can be produced with a solids content up to 22 wt.%. Thus, this method provides a commercially viable route to functional latexes.
Original languageEnglish
Pages (from-to)607-613
Number of pages7
JournalJournal of Dispersion Science and Technology
Volume24
Issue number3-4
DOIs
Publication statusPublished - 1 May 2003

Keywords

  • Amphiphilic core-shell particle
  • Functional poly(methyl methacrylate)
  • Graft copolymerization
  • Poly(allylamine)
  • Poly(ethyleneimine)
  • Tertbutyl hydroperoxide

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Polymers and Plastics

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