Microemulsion photopolymerization of methacrylates stabilized with sodium dodecyl sulfate and poly(N-acetylethylenimine) macromonomers

David G., Ozer F., Simionescu B., Zareie H., Piskin E.

EUROPEAN POLYMER JOURNAL, vol.38, no.1, pp.73-78, 2002 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 38 Issue: 1
  • Publication Date: 2002
  • Doi Number: 10.1016/s0014-3057(01)00162-8
  • Journal Name: EUROPEAN POLYMER JOURNAL
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.73-78
  • Hacettepe University Affiliated: No

Abstract

Methyl methacrylate and butyl methacrylate were polymerized in oil-in-water microemulsions that were stabilized by sodium dodecyl sulphate (SIDS). A poly(N-acetylethylenimine) (PNAEI) macromer was also included in the recipe, as a cosurfactant and a comonomer. Polymerizations were initiated by UV-irradiation. The average diameters of latex particles, obtained by STM, were in the range of 17-200 nm. The experimental data evidenced that the particle size was mainly dependent on the SDS/PNAEI ratio. Polymerization yields were around 75-85%. The synthesized copolymers have viscosity average molecular weights in the range of 2.1-2.4 x 10(6) and glass transition temperatures of 38.0-43.5 degreesC, lower than those obtained without using PNAEI. The investigation by means of FTIR and H-1-NMR techniques revealed that PNAEI was incorporated into the nanoparticles. (C) 2001 Elsevier Science Ltd. All rights reserved.