Conference Paper
Inverse microemulsion copolymerization of styrene and acrylic acid
Fecha
1991Autor
Puig, J.E.
Corona-Galvan, S.
Martinez, M.
Saenz, G.
Institución
Resumen
In this paper we report the first account on the copolymerization of a water-soluble monomer (acrylic acid) and a water-insoluble monomer (styrene) in ionic inverse microemulsions. Three different surfactants were used: AOT, a cationic surfactant, DDAB (didodecyldimethylammonium bromide) and a mixture of two cationic surfactants, DDAB and DTAB (dodecyltrimethylammonium bromide). The polymerization was carried out at 60 °C using either a water-soluble (K2S2O8) or an oil-soluble (azobisisobutyronitrile or AIBN) initiator. Copolymerization of acrylic acid and styrene was achieved with the three surfactants only when AIBN was used. With potassium persulfate, only polyacrylic acid was produced.