Nano Archive

Controllable nanostructural transitions in grafted nanoparticle-block copolymer composites

Xu, Guang-Kui and Feng, Xi-Qiao and Yu, Shou-Wen (2010) Controllable nanostructural transitions in grafted nanoparticle-block copolymer composites. Nano Research, 3 (5). pp. 356-362.

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We report a theoretical investigation of self-assembled nanostructures of polymer-grafted nanoparticles in a block copolymer and explore underlying physical mechanisms by employing the self-consistent field method. By varying the particle concentration or the chain length and density of the grafted polymer, one can not only create various ordered morphologies (e.g., lamellar or hexagonally packed patterns) but also control the positions of nanoparticles either at the copolymer interfaces or in the center of one-block domains. The nanostructural transitions we here report are mainly attributed to the competition between entropy and enthalpy.

Item Type:Article
Uncontrolled Keywords:Block copolymer - nanocomposite - pattern formation - self-assembly - self-consistent field theory
Subjects:Material Science > Functional and hybrid materials
Material Science > Nanostructured materials
ID Code:9295
Deposited By:IoN
Deposited On:14 Jul 2010 15:07
Last Modified:14 Jul 2010 15:07

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