Preparation of double-responsive SiO2-g-PDMAEMA nanoparticles via ATRP

Preparation of double-responsive SiO2-g-PDMAEMA nanoparticles via ATRP
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ATRP制备双响应SiO2-g-PDMAEMA纳米粒子

DOI:
10.1016/j.matlet.2007.08.057
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发表时间:
2008-03
期刊:
影响因子:
3
通讯作者:
Yuan, Weizhong
Yuan, Weizhong
中科院分区:
材料科学3区
文献类型:
--
作者:
Hong, Xiaoyin;Zhou, Lilin;Yuan, Jinying;Yuan, Weizhong

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有机/无机杂化材料兼具有机聚合物和无机材料的优点,现已成为材料科学研究的新热点。我们选择聚甲基丙烯酸2-二甲氨基乙酯(PDMAEMA),通过原子转移自由基聚合(ATRP)的方法将其接枝到SiO2纳米粒子表面,制备了具有pH和温度刺激响应性的杂化纳米粒子。利用热重分析(TGA)测定了杂化纳米粒子中有机化合物的含量,并利用透射电子显微镜(TEM)观察了杂化纳米粒子的壳核结构。用ZetaPALS Zeta电位分析仪表征双刺激响应。结果表明,成功合成了杂化纳米粒子,并具有预期的双重刺激响应。
Organic/inorganic hybrid materials have both the advantages of organic polymers and inorganic materials, and now have become a new hotspot in material science. We choose Poly((2-Dimethylamino)ethyl methacrylate) (PDMAEMA), which was grafted from the surface of silica nanoparticles via atom transfer radical polymerization (ATRP) to form pH and temperature stimuli-responsive hybrid nanoparticles. Thermogravimetric analysis (TGA) was used to estimate the content of linked organic compound, and transmission electron micrographs (TEM) was used to observe the shell–core structure of hybrid nanoparticles. Double stimuli-response was characterized with ZetaPALS Zeta Potential Analyzer. The results showed that the hybrid nanoparticles were successfully synthesized and had the expected double stimuli-response.
DOI: 10.1021/la0629431
发表时间: 2007-03
期刊: Langmuir : the ACS journal of surfaces and colloids
影响因子: --
作者:
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