TY - JOUR
T1 - Functionalized soft nanoporous materials through supramolecular assembly of end-functionalized polymer blends
AU - Song, Giyoung
AU - Cho, Suk Man
AU - Jung, Hee Joon
AU - Kim, Richard Hahnkee
AU - Bae, Insung
AU - Ahn, Hyungju
AU - Ryu, Du Yeol
AU - Huh, June
AU - Park, Cheolmin
PY - 2012/12/3
Y1 - 2012/12/3
N2 - 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).
AB - 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).
KW - nanoporous materials
KW - polymers
KW - self-assembly
KW - solvent annealing
KW - supramolecular assembly
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U2 - 10.1002/chem.201202685
DO - 10.1002/chem.201202685
M3 - Article
C2 - 23108922
AN - SCOPUS:84870047452
SN - 0947-6539
VL - 18
SP - 15662
EP - 15668
JO - Chemistry - A European Journal
JF - Chemistry - A European Journal
IS - 49
ER -