作者：Fa-Ai Zhang, Cai-Li Yu, Xing-Hua Zhu, Chun Wei
关键字：acrylate; hydroxyl groups; emulsion polymerization; initiators; particle size; distribution
论文来源：期刊
具体来源：Polymer for Advanced Technology
发表时间：2006年

The influence of the initiator (ammonium persulfate, APS) and APS/reducer system on the acrylate
emulsion copolymerization of methyl methacrylate/butyl acrylate/acrylic acid/hydroxylethyl
methacrylate (HEMA) was studied. The initiator level, reaction temperature, reducer type and
reducer level on the effect of polymerization rate, particle size and size distribution were
investigated. It was found that with the existence of hydrophilic monomer HEMA, polymerization
rate increased but the particle size decreased and the size distribution became narrowed with the
increase of initiator level, reaction temperature and reducer sodium hydrogen carbonate (NaHSO3)
level. TheAPS/NaHSO3 system had better initiation efficiency than the APS/FeSO4 system