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Preparation of polystyrene microspheres using rosin-acrylic acid diester as crosslinking agent
作者:Cai-li Yu, Xiaolei Wang, Chuanwei Chen, Faai Zhang
關鍵字:rosin; rosin acrylic; rosin ester; styrene; suspension polymerization; polymer microspheres
論文來源:期刊
具體來源:industrial and engineering chemistry research
發表時間:2014年
Reacting acrylic rosin with 2-hydroxyethyl methacrylate (HEMA) produced an ester (RAH) with double bonds that was used as a crosslinking monomer for preparation of polystyrene microspheres via suspension polymerization, replacing the traditional monomer divinyl benzene. The effects of monomer weight ratio, reaction temperature, gelatin level, and stirring speed on the polymer microspheres were investigated. The structures, morphology, and properties of the polymer microspheres were analyzed and characterized by Fourier transform infrared spectroscopy, scanning electron microscopy, thermogravimetric analysis, optical microscope, and laser particle size analysis. The results indicated that the polymer microsphere with the best spherical shape were prepared with a monomer weight ratio of mSt:mRAH = 2:1, with azodiisobutyronitrile and gelatin in the amount of 1 and 6 wt.% of total monomers,. The particle size of the polymer microspheres varied with the reaction conditions.
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