摘要
以偶氮二异丁腈(AIBN)为引发剂,通过分散聚合法制备了单分散聚(苯乙烯-co-丙烯酸丁酯)[P(St-co-BA)]共聚微球。通过傅里叶变换红外光谱(FTIR)、扫描电子显微镜(SEM)、差示扫描量热仪(DCS)等对P(St-co-BA)微球进行了表征。研究了不同含量丙烯酸正丁酯(BA)对共聚物微球的粒子尺寸、形貌、性能以及聚合动力学的影响。研究表明,随着BA含量的增加,共聚微球的粒径增加,单分散性变差,转化率和玻璃化转变温度均降低。另外介绍了苯乙烯(St)和BA的分散聚合机理。
The single dispersed poly(styrene-co-butyl acrylate)[P(St-co-BA)]microspheres were prepared by dispersion polymerization with azodiisobutyronitrile(AIBN)as initiator.The P(St-co-BA)microspheres were characterized by Fourier transform infrared spectroscopy(FTIR),scanning electron microscope(SEM)and differential scanning calorimetry(DCS).The effects of different contents of butyl acrylate(BA)on the particle size,morphology,properties and polymerization kinetics of copolymer microspheres were studied.The results show that with the increase of BA contents,the particle size of the copolymerized microspheres increases,the monodispersity becomes worse,and the conversion rate and glass transition temperature are reduced.In addition,the dispersion polymerization mechanism of styrene(St)and BA is introduced.
作者
胡霞
刘洋
徐海超
刘伯军
张明耀
HU Xia;LIU Yang;XU Hai-chao;LIU Bo-jun;ZHANG Ming-yao(Engineering Research Center of Synthetic Resins and Special Fiber,Ministry of Education,Changchun University of Technology,Changchun 130012,China;School of Chemical Engineering,Changchun University of Technology,Changchun 130012,China)
出处
《塑料工业》
CAS
CSCD
北大核心
2021年第6期30-33,共4页
China Plastics Industry
基金
国家自然科学基金资助项目(51903017)。
关键词
分散聚合
苯乙烯
丙烯酸正丁酯
聚合机理
Dispersion Polymerization
Styrene
Butyl Acrylate
Polymerization Mechanism
