writer：Fa-ai Zhang, Yunpu Wang, Li Yuan, Chunpeng Chai
keywords：Synthesis; Acrylate emulsion; Hydroxyl monomer
source：期刊
specific source：J. Macromolecular Science, Part A-Pure and Applied Chemistry
Issue time：2004年

Using butyl acrylate (BA), methyl methacrylate (MMA), acrylic acid (AA), and
hydroxylethyl methacrylate as comonomers, along with ammonium persulfate as
initiator, emulsions with high hydroxyl content (10–35%) and carboxyl groups were
synthesized from semi-continuous seed emulsion polymerization methods. Emulsifier
types and levels, reaction temperature, level of hydroxyl monomer, and level of
monomer carboxyl on stability of the emulsion polymerizations were investigated.
Viscosity of the emulsion was discussed. It was found that when the sodium lauryl
sulfate (SLS) and p-octyl polyethylene glycol phenyl ether (OP) mixed emulsifiers
were used, at a level of 3%, and a ratio of SLS/OP of 4/6, along with a reaction
temperature at 65–758C, the polymerization process had lower coagulum. As the levels
of hydroxyl monomer and carboxyl monomer increased, the coagulum increased, and
the viscosity of the resulting emulsion.