摘要
Dispersion polymerization of acrylic acid was successfully carried out in aqueous ammonium sulfate media at 30 ℃.The polymerization behavior with varying concentrations of stabilizer,ammonium persulfate,and ammonium sulfate were investigated.Polydisperse spherical particles were formed in the system.The particle sizes increase first,then decrease with the increase of the initiator concentration.The increase of the stabilizer concentration resulted in a decrease in particle size and an increase in the intrinsic viscosity.The results show that the reaction conditions for the stable dispersion polymer are as follows: the mass fractions are 0.64%-1.92% for the stabilizer, and 24%-31% for the salt respectively.
Dispersion polymerization of acrylic acid was successfully carried out in aqueous ammonium sulfate media at 30℃. The polymerization behavior with varying concentrations of stabilizer, ammonium persulfate, and ammonium sulfate were investigated. Polydisperse spherical particles were formed in the system. The particle sizes increase first, then decrease with the increase of the initiator concentration. The increase of the stabilizer concentration resulted in a decrease in particle size and an increase in the intrinsic viscosity. The resuits show that the reaction conditions for the stable dispersion polymer are as follows： the mass fractions are 0. 64%-1.92% for the stabilizer, and 24%-31% for the salt respectively.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
2006年第2期394-396,共3页
Chemical Journal of Chinese Universities
基金
国家自然科学基金(批准号:20476102)
国家科技部'八六三'计划项目(批准号:2003AA322060)资助
关键词
分散聚合
丙烯酸
水介质
Dispersion polymerization
Acrylic acid
Aqueous media
