Journal
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
Volume 373, Issue 1-3, Pages 82-87Publisher
ELSEVIER
DOI: 10.1016/j.colsurfa.2010.10.034
Keywords
PS-b-P4VP; Template; 1; 4-dioxane; Chloroform; FePt nanoparticles
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Funding
- Agency for Science. Technology and Research (A*STAR) Singapore [062 101 0021]
- NUS
- US Office of Naval Research
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A control strategy for tuning the film morphology of asymmetric polystyrene-b-poly(4-vinylpyridine) (PS-b-P4VP) block copolymers (BCPs) is reported. After preparation of the film by spin-coating method, the as-cast films were annealed in different solvent vapor. It is found that chloroform is a wonderful solvent for forming PS-b-P4VP regular pattern. Otherwise, with changing the concentration of PS-b-P4VP, cylindrical or parallel nanostructures could be attained. The PS-b-P4VP films with cylindrical structure are used as template to deposit FePt nanoparticles into the pores. Nanoparticles reaching the bottom of the holes form a disordered magnetic array. (C) 2010 Elsevier B.V. All rights reserved.
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