The Effect of Initiator System on Acrylate Emulsion Copolymerization with Higher Hydroxyl Monomer Content
作者：Fa-Ai Zhang, Cai-Li Yu, Xing-Hua Zhu, Chun Wei
關鍵字：acrylate; hydroxyl groups; emulsion polymerization; initiators; particle size; distribution
論文來源：期刊
具體來源：Polymer for Advanced Technology
發表時間：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