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Park, Soojin
Nano-Functional Materials Lab
Research Interests
  • Block Copolymers, nanostructured materials for Lithium-Ion batteries, wearable and stretchable energy storage applications


Ordering evolution of block copolymer thin films upon solvent-annealing process

DC Field Value Language Lee, Dong Hyun ko Cho, Heesook ko Yoo, Seungmin ko Park, Soojin ko 2014-04-10T02:14:52Z - 2013-06-21 ko 2012-10 -
dc.identifier.citation JOURNAL OF COLLOID AND INTERFACE SCIENCE, v.383, no.1, pp.118 - 123 ko
dc.identifier.issn 0021-9797 ko
dc.identifier.uri -
dc.identifier.uri ko
dc.description.abstract Morphologies of polystyrene-block-poly(2-vinylpyridine) copolymer (S2VP) thin films, which are forming poly(2-vinylpyridine) cylinders in bulk phase, were investigated by atomic force microscopy (AFM) and transmission electron microscopy (TEM) to account for their ordering behavior induced by solvent annealing. Initially, when the copolymer was dissolved in toluene, which is selective solvent for majority polystyrene (PS) blocks, and was spin-coated on Si substrates, dimple-type micellar structures of S2VP were formed. After the film was placed in a solvent-annealing chamber covered with a lid under the existence of chloroform, surface morphologies of S2VP were measured as a function of annealing time. In this study, it was found that the morphologies of S2VP thin film repeated the cycle of the creation and extinction of various morphologies on ordering process. Namely, S2VP exhibited the various transformations between different morphologies, including highly disordered state, cylinders normal to the plane, and cylinders parallel to the plane. Each of the morphologies observed here was employed as a template to synthesize gold (Au) nanoparticles or nanowires. The arrays of Au nano-objects were used to tune a surface plasmon resonance. ko
dc.description.statementofresponsibility close -
dc.language ENG ko
dc.subject 2-vinylpyridine ko
dc.subject Annealing time ko
dc.subject Block copolymer thin films ko
dc.subject Bulk phase ko
dc.subject Disordered state ko
dc.subject Micellar structures ko
dc.subject Nano-objects ko
dc.subject Ordering process ko
dc.subject Poly(2-vinylpyridine) (P2VP) ko
dc.subject Selective solvents ko
dc.subject Si substrates ko
dc.subject Solvent annealing ko
dc.subject Transmission electron microscopy tem ko
dc.title Ordering evolution of block copolymer thin films upon solvent-annealing process ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-84864100628 ko
dc.identifier.wosid 000307207300016 ko
dc.type.rims ART ko
dc.description.scopustc 4 * 2014-07-12 *
dc.identifier.doi 10.1016/j.jcis.2012.06.030 ko
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