Synthesis and characterization of poly(sodium-p-styrenesulfonate)/modified SiO2 spherical brushes
Synthesis and characterization of poly(sodium-p-styrenesulfonate)/modified SiO2 spherical brushes
复制标题
聚对苯乙烯磺酸钠/改性SiO2球形刷的合成与表征
DOI：
10.3144/expresspolymlett.2012.72
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发表时间：
2012
影响因子：
3.3
通讯作者：
X. H. Liu
中科院分区：
文献类型：
--
作者：
H. B. Li;H. M. Zheng;S. P. Yi;X. H. Liu
研究了在甲基丙烯氧丙基三甲氧基硅烷修饰的二氧化硅纳米粒子表面接枝对苯磺酸钠(SSS)制备新型阴离子球形聚电解质刷(ASPB)的方法。用透射电子显微镜和扫描电子显微镜对ASPB的形貌进行了表征。用Zeta电位/粒度仪(ZLS)测得ASPB的核半径Rc约为50 nm，流体动力学半径Rh约为(84.5±1)nm。用热重分析(TGA)研究了聚合物电刷的接枝率(Pg%)为4.3%。通过从锚定表面切割接枝，对ASPB进行了详细的表征。凝胶渗透色谱测得刷子的相对分子质量和多分散度分别为1.788·103g/m ol和1.6。此外，还讨论了ASPB在不同浓度的氯化钠水溶液中的Rh和！-电势。
The multistep procedures for preparing novel anionic spherical polyelectrolyte brushes (ASPB) by grafting sodium-p-styrenesulfonate (SSS) from the surface of !-methacryloxypropyl trimethoxy-silane modified SiO2 nanoparticles were demonstrated. The morphology of ASPB was characterized by Transmission Electron Microscopy (TEM) and Scan- ning Electron Microscopy (SEM). The core radius Rc and hydrodynamic radius Rh of ASPB measured by Zeta Potential/Particle Sizer (ZLS) were ca. 50nm and (84.5±1) nm respectively. The percentage of grafting (PG%) of polyelec- trolyte brushes was 4.3% investigated by Thermo-gravimetric analysis (TGA). Detailed characterizations on ASPB were performed by cleaving the grafts from the anchoring surface. The molecular weight (Mw) and polydispersity (Mw/Mn) of brushes were 1.788·10 3 g/mol and 1.6 respectively from Gel Permeation Chromatography (GPC) measurements. Moreover, Rh and !-potential of ASPB in the presence of aqueous NaCl solutions of different concentrations were discussed.
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影响因子：
5.5
作者：
Zhang, HN;Rühe, J
通讯作者：
Rühe, J
影响因子：
4.6
作者：
Geeta K. Sharma;M. Ballauff
通讯作者：
Geeta K. Sharma;M. Ballauff
影响因子：
4.6
作者：
A. Parnell;S. Martin;Cheen C. Dang;M. Geoghegan;Richard A. L. Jones;Colin J. Crook;J. Howse;A. Ryan
通讯作者：
A. Parnell;S. Martin;Cheen C. Dang;M. Geoghegan;Richard A. L. Jones;Colin J. Crook;J. Howse;A. Ryan
影响因子：
9.9
作者：
Rao, KS;El-Hami, K;Makino, K
通讯作者：
Makino, K
DOI：
10.1021/la8009767
发表时间：
2008-09
期刊：
Langmuir : the ACS journal of surfaces and colloids
影响因子：
--
作者：
M. Retsch;A. Walther;K. Loos;A. Müller
通讯作者：
M. Retsch;A. Walther;K. Loos;A. Müller