G. David et al., Microemulsion photopolymerization of methacrylates stabilized with sodium dodecyl sulfate and poly(N-acetylethylenimine) macromonomers, EUR POLYM J, 38(1), 2002, pp. 73-78
Methyl methacrylate and butyl methacrylate were polymerized in oil-in-water
microemulsions that were stabilized by sodium dodecyl sulphate (SIDS). A p
oly(N-acetylethylenimine) (PNAEI) macromer was also included in the recipe,
as a cosurfactant and a comonomer. Polymerizations were initiated by UV-ir
radiation. The average diameters of latex particles, obtained by STM, were
in the range of 17-200 nm. The experimental data evidenced that the particl
e size was mainly dependent on the SDS/PNAEI ratio. Polymerization yields w
ere around 75-85%. The synthesized copolymers have viscosity average molecu
lar weights in the range of 2.1-2.4 x 10(6) and glass transition temperatur
es of 38.0-43.5 degreesC, lower than those obtained without using PNAEI. Th
e investigation by means of FTIR and H-1-NMR techniques revealed that PNAEI
was incorporated into the nanoparticles. (C) 2001 Elsevier Science Ltd. Al
l rights reserved.