Reversible morphology control of three-dimensional block copolymer nanostructures by the solvent-annealing-induced wetting in anodic aluminum oxide templates

In this work, the authors study the fabrication of three-dimensional block copolymer nanostructures in which the morphologies can be reversibly controlled. Polystyrene-block-polydimethylsiloxane (PS-b-PDMS), a promising candidate for nanolithography, is introduced into cylindrical nanopores of anodi...

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Bibliographic Details
Published in:International journal of polymeric materials 2016-09, Vol.65 (13), p.695-701
Main Authors: Chu, Chiang-Jui, Cheng, Ming-Hsiang, Chung, Pei-Yun, Chi, Mu-Huan, Jeng, Kai-Sheng, Chen, Jiun-Tai
Format: Article
Language:English
Subjects:
Annealing
Block copolymer
Copolymers
Morphology
Nanostructured materials
self-assembly
solvent vapor annealing
Solvents
template
wetting
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Summary:In this work, the authors study the fabrication of three-dimensional block copolymer nanostructures in which the morphologies can be reversibly controlled. Polystyrene-block-polydimethylsiloxane (PS-b-PDMS), a promising candidate for nanolithography, is introduced into cylindrical nanopores of anodic aluminum oxide (AAO) templates using a solvent annealing-induced nanowetting in templates (SAINT) method. Not only the morphologies of the infiltrated PS-b-PDMS nanostructures can be tuned by the annealing solvents, but also the solvent-vapor-controlled morphologies can be altered reversibly by annealing the samples repeatedly between different solvent vapors.
ISSN:0091-4037
1563-535X
DOI:10.1080/00914037.2016.1157801