Affiliation:
1. National Creative Research Initiative Center for Hybrid Nano Materials by High‐level Architectural Design of Block Copolymer Department of Chemical Engineering Pohang University of Science and Technology (POSTECH) Pohang 37673 Republic of Korea
2. State Key Laboratory of Molecular Engineering of Polymers Key Laboratory of Computational Physical Sciences Department of Macromolecular Science Fudan University Shanghai 200433 China
Abstract
AbstractHierarchical cylindrical nanostructures with different diameters (or shapes) have received much attention because of potential applications to next‐generation lithography or advanced optical devices. Herein, via small‐angle X‐ray scattering and transmission electron microscopy, tetragonally and rectangularly packed hierachical cylindrical nanostructures are observed by tailoring the volume fraction of polystyrene mid‐block in polystyrene‐b‐polyisoprene‐b‐polystyrene‐b‐poly(2‐vinylpyridine) tetrablock terpolymer (S1IS2V). P2VP becomes the main cylinder, while PI forms satellite cylinders surrounding the main P2VP cylinder. When the length of S2 block is relatively short, tetragonal arrangement of cylinders is observed. But, a rectangular arrangement of cylinders is formed for larger S2 block. The experimentally observed hierarchical cylindrical nanostructures are in good agreement with the prediction by the self‐consistent field theory.
Funder
National Natural Science Foundation of China
Subject
Materials Chemistry,Polymers and Plastics,Organic Chemistry
Cited by
1 articles.
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