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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

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【作者】 史博章永化石耀刚王建华

【Author】 SHI Bo1,ZHANG Yong-Hua1,SHI Yao-Gang2,WANG Jian-Hua2(1.Department of Polymer Science,South China University of Technology,Guangzhou 510640,China;2.China Academy of Engineering Physics,Mianyang 621900,China)

【机构】 华南理工大学高分子系中国工程物理研究院中国工程物理研究院 广州510640广州510640绵阳621900

【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.

【基金】 国家自然科学基金(批准号:10676009)资助
  • 【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
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