Functionalized soft nanoporous materials through supramolecular assembly of end-functionalized polymer blends

Giyoung Song, Suk Man Cho, Hee Joon Jung, Richard Hahnkee Kim, Insung Bae, Hyungju Ahn, Du Yeol Ryu, June Huh, Cheolmin Park

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Supramolecular assembly through complementary interaction between molecular subgroups belonging to phase-separating polymer species offers a great opportunity, not only for constructing nanoscale soft templates reminiscent of conventional block copolymer morphologies, but also for tailoring surface properties by facile removal of one of the structure components by cleaving complementary interactions. Herein we report the fabrication of a novel, organic, nanoporous film through supramolecular assembly of two complementarily, end-interacting, mono-end-functionalized polymers under solvent annealing. The film of end-functionalized polymer blends under solvent annealing yielded phase-separated nanodomains that resemble nanoscopically ordered structures of block copolymers, but that are more advantageous due to easily cleavable and exchangeable links between the phase-separated domains. The removal of one of the components of the precursor structure formed from the end-functionalized polymers through cleavage of complementary interactions allowed us to fabricate mono- or multilayered nanoporous structures in which the chemically useful end-functionalities of the remnant polymers are rich on the surface of the pores. The resultant, organic, nanoporous films with tailored surface functionality offer a useful platform for various chemical and biological applications. A well-organized, nanoporous, thin template was fabricated with control over both size and interdomain distance through conventional solution blending and spin-coating by using two mono-end-functionalized polymers. A simple solvent-vapor treatment not only improved the nanostructure formation, but also effectively removed one of the polymers, leading to a nanoporous soft template with rich end functionalities on the surface of the pores (see figure).

Original languageEnglish
Pages (from-to)15662-15668
Number of pages7
JournalChemistry - A European Journal
Volume18
Issue number49
DOIs
Publication statusPublished - 2012 Dec 3
Externally publishedYes

Fingerprint

Polymer blends
Polymers
Block copolymers
Annealing
Molecular interactions
Spin coating
Surface Properties
Nanostructures
Surface properties
Vapors
Fabrication

Keywords

  • nanoporous materials
  • polymers
  • self-assembly
  • solvent annealing
  • supramolecular assembly

ASJC Scopus subject areas

  • Catalysis
  • Organic Chemistry

Cite this

Functionalized soft nanoporous materials through supramolecular assembly of end-functionalized polymer blends. / Song, Giyoung; Cho, Suk Man; Jung, Hee Joon; Kim, Richard Hahnkee; Bae, Insung; Ahn, Hyungju; Ryu, Du Yeol; Huh, June; Park, Cheolmin.

In: Chemistry - A European Journal, Vol. 18, No. 49, 03.12.2012, p. 15662-15668.

Research output: Contribution to journalArticle

Song, Giyoung ; Cho, Suk Man ; Jung, Hee Joon ; Kim, Richard Hahnkee ; Bae, Insung ; Ahn, Hyungju ; Ryu, Du Yeol ; Huh, June ; Park, Cheolmin. / Functionalized soft nanoporous materials through supramolecular assembly of end-functionalized polymer blends. In: Chemistry - A European Journal. 2012 ; Vol. 18, No. 49. pp. 15662-15668.
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