Preparation of polystyrene microspheres using rosin-acrylic acid diester as crosslinking agent
作者：Cai-li Yu, Xiaolei Wang, Chuanwei Chen, Faai Zhang
关键字：rosin; rosin acrylic; rosin ester; styrene; suspension polymerization; polymer microspheres
论文来源：期刊
具体来源：industrial and engineering chemistry research
发表时间：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.