摘要
由原子转移自由基聚合(ATRP)和端基取代两步法制备得到了端基官能团聚合物(PS-NH-SO3Na),对其结构进行了表征和动力学研究;又分别对PS-NH-SO3Na和一步ATRP法制备得到的端基官能团聚合物(PS-SO3Na)与表面阳离子化SiO2组装后粉体的残余质量进行了对比。动力学研究结果表明,当单体转化率控制在85%以内可得到高含量的活性端基聚合物;组装粉体的残余质量分析表明,ATRP聚合得到的聚合物存在一定量的死聚物。
End functional polymer（PS-NH-SO3Na） was synthesized via atom transfer radical polymerization（ATRP） followed by end group substituent,of which the structures and kinetics were characterized and researched.It was compared with the weight retention of powder which was made by assembling between PS-NH-SO3Na or PS-SO3Na and surface cationic silica.The conclusion of kinetic researching shows that living end functional polymer can be achieved as much as possible when the conversation of monomer below 85%.The weight retention analysis of the two kinds of powder referred above means that some dead polymers exist in the total polymers.
出处
《广东石油化工学院学报》
2011年第1期6-10,共5页
Journal of Guangdong University of Petrochemical Technology
基金
广东省博士启动项目(10452500002005997
树形嵌段用于构筑刺激稳定聚合物刷及组装规律研究)
关键词
PS
端官能团
ATRP
活性端基含量
polystyrene（PS）
end functional
atom transfer radical polymerization（ATRP）
content of end living groups
