摘要
研究了苯乙烯在乙醇/水介质中,以聚电解质聚丙烯酸为分散剂,偶氮二异丁腈为引发剂的分散聚合行为。考察了溶剂体系、分散剂用量、单体浓度、引发剂种类和用量、反应温度及时间诸因素对聚合反应及产物的影响。通过改变各种反应条件,采用分散聚合法,成功地合成出平均粒径2.1μm的单分散聚苯乙烯微球。
Monodisperse polystyrene microspheres with a diameter of 2.1μm have been prepared by the dispersion polymerization of styrene in alcohol/water mixtures stabilized by a polyelectr-olyte, polyacrylic acid (PAA) . The influence ot PAA concentration, alcohol/water ratio, initiator type and concentration, styrene concentration and temperature on the particle size and polymerization behavior have been examined.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
1991年第4期25-29,共5页
Polymer Materials Science & Engineering
关键词
分散聚合
微球
苯乙烯
dispersion polymerization, microspheres, styrene.
