节点文献
表面阳离子化纳米SiO2与端官能化聚苯乙烯的静电组装行为
Electrostatic-assembly Behavior Between Cationically Modified Silica and End-functionalized Polystyrene
【Abstract】 Polystyrene brushes were constructed on cationically modified silica nanoparticles(SiO2-CBAFS)by electrostatic-assembly.TGA,TEM,AFM and contact angle were used to characterize the mass loss,microscopic images,topology,surface property of the products,respectively.The results show that PS-NH-SO3Na can be successfully attached to the surface of SiO2-CBAFS nanoparticles by electrostatic-assembly with high grafting density,which is much higher than that from the reports;the aggregation of silica can be prevented efficiently by being assembled a monolayer of PS-NH-SO3Na;the water contact angles of the Si/SiO2-CBAFS/PS-NH-SO3Na decrease with the increase of molecular weight and the mass concentration of PS-NH-SO3Na under different environments.
【Key words】 Cationical modification; Silica nanoparticles; End-functionalization; Polystyrene; Electrostatic-assembly;
- 【文献出处】 高等学校化学学报 ,Chemical Journal of Chinese Universities , 编辑部邮箱 ,2008年04期
- 【分类号】O632.2
- 【被引频次】1
- 【下载频次】179