Polymer-Grafted-Nanoparticle Surfactants

被引：69
|
作者：
Maillard, Damien [1 ]
Kumar, Sanat K. [1 ]
Rungta, Atri [2 ]
Benicewicz, Brian C. [2 ]
Prud'homme, Robert E. [3 ]
机构：
[1] Columbia Univ, Dept Chem Engn, New York, NY 10026 USA
[2] Univ S Carolina, Dept Chem, Columbia, SC 29208 USA
[3] Univ Montreal, Dept Chim, Montreal, PQ H3C 3J7, Canada
来源：
NANO LETTERS | 2011年 / 11卷 / 11期
基金：
美国国家科学基金会;
关键词：
polymer grafted nanoparticles; surfactancy; self-assembly; HOMOPOLYMER MATRIX; COPOLYMER MICELLES; NANOCOMPOSITES; PARTICLES; BRUSHES; STRATEGIES; DISPERSION; DYNAMICS; MELTS;
D O I：
10.1021/nl202651u
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
We have studied the surface behavior of nanoparticles, which are lightly grafted with polymer chains, when they are mixed with matrix chains of the same architecture as the grafts. We consider the particular case where the nanoparticle core and the grafted polymer chains energetically dislike each other and show that the extent of surface segregation of these "hairy" nanoparticles and their self-assembly into a variety of structures can be tuned by varying the number and the length of the grafted chains and the matrix chain length. These results unequivocally show that grafted nanoparticles in polymer matrices behave akin to block copolymers (or amphiphiles) in selective solvents, with readily controllable surface behavior.
引用
收藏
页码：4569 / 4573
页数：5
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