Highly ordered hexagonal arrays of hybridized micelles from bimodal self-assemblies of diblock copolymer micelles.

We demonstrate the formation of highly ordered hexagonal arrays of hybridized polystyrene-poly(4-vinyl pyridine), PS-PVP, micelles with controllable size by solvent annealing techniques. Because the formation of hybridized micelles was prohibited in the mixture solutions of two different-sized PS-PVP micelles, single-layered films with bimodal self-assemblies of small and large micelles were fabricated from the mixture solutions by adjusting their mixing ratios. When the single-layered films were solvent annealed by saturated vapor of tetrahydrofuran (THF), on the other hand, small and large PS-PVP micelles in the bimodal self-assemblies merged together to form hybridized micelles. In addition, the hybridized micelles arranged themselves in a highly ordered hexagonal array, the diameter and center-to-center distance of which were precisely adjusted by varying the mixing ratio of small to large micelles in the bimodal assemblies.

[1]  Cheol-Min Park,et al.  Ordered Arrays of PS-b-P4VP Micelles by Fusion and Fission Process upon Solvent Annealing , 2009 .

[2]  S. Yoo,et al.  Single layers of diblock copolymer micelles for the fabrication of arrays of nanoparticles , 2007 .

[3]  Agus Haryono,et al.  Controlled arrangement of nanoparticle arrays in block-copolymer domains. , 2006, Small.

[4]  I. Hamley.  Nanostructure fabrication using block copolymers , 2003 .

[5]  T. Hashimoto,et al.  Ordered structure in blends of block copolymers. 1. Miscibility criterion for lamellar block copolymers , 1993 .

[6]  J. Jung,et al.  Mixtures of Diblock Copolymer Micelles by Different Mixing Protocols , 2007 .

[7]  Soojin Park,et al.  A simple route to highly oriented and ordered nanoporous block copolymer templates. , 2008, ACS nano.

[8]  Esselink,et al.  Redistribution of Block Copolymer Chains between Mixed Micelles in Solution. , 1998, Macromolecules.

[9]  Soojin Park,et al.  Macroscopic 10-Terabit–per–Square-Inch Arrays from Block Copolymers with Lateral Order , 2009, Science.

[10]  T. Lodge,et al.  Control of Structure in Multicompartment Micelles by Blending μ-ABC Star Terpolymers with AB Diblock Copolymers , 2006 .

[11]  Frank S. Bates,et al.  Consequences of Nonergodicity in Aqueous Binary PEO-PB Micellar Dispersions , 2004 .

[12]  A. Hart,et al.  Controlling the Morphology of Carbon Nanotube Films by Varying the Areal Density of Catalyst Nanoclusters Using Block‐Copolymer Micellar Thin Films , 2006 .

[13]  E. Katz,et al.  Nanoparticle arrays on surfaces for electronic, optical, and sensor applications. , 2000, Chemphyschem : a European journal of chemical physics and physical chemistry.

[14]  R. Cohen,et al.  Cavitated block copolymer micellar thin films: Lateral arrays of open nanoreactors , 2002 .

[15]  J. Spatz,et al.  Block Copolymer Micelle Nanolithography , 2003 .

[16]  Markus Antonietti,et al.  Amphiphilic Block Copolymers in Structure-Controlled Nanomaterial Hybrids , 1998 .

[17]  D. Young,et al.  Correlation of the glass transition temperature of plasticized PVC using a lattice fluid model , 2003 .

[18]  Ian W. Hamley,et al.  The physics of block copolymers , 1998 .

[19]  Ting Xu,et al.  Highly Oriented and Ordered Arrays from Block Copolymers via Solvent Evaporation , 2004 .

[20]  C. Ross,et al.  Templated Self‐Assembly of Block Copolymers: Top‐Down Helps Bottom‐Up , 2006 .

[21]  Soojin Park,et al.  Fabrication of ordered anodic aluminum oxide using a solvent-induced array of block-copolymer micelles. , 2007, Small.

[22]  Anwei Qin,et al.  Hybridization of Block Copolymer Micelles , 1993 .

[23]  Matthew Libera,et al.  Morphological Development in Solvent-Cast Polystyrene−Polybutadiene−Polystyrene (SBS) Triblock Copolymer Thin Films , 1998 .

[24]  Byeong-Hyeok Sohn,et al.  Highly Ordered Arrays of Nanoparticles in Large Areas from Diblock Copolymer Micelles in Hexagonal Self-Assembly , 2006 .

[25]  Caroline A. Ross,et al.  Solvent‐Vapor‐Induced Tunability of Self‐Assembled Block Copolymer Patterns , 2009 .

[26]  S. Ludwigs,et al.  Self-assembly of functional nanostructures from ABC triblock copolymers , 2003, Nature materials.

[27]  J. V. Sanders.  Close-packed structures of spheres of two different sizes I. Observations on natural opal , 1980 .

[28]  Jaegab Lee,et al.  Tunable Memory Characteristics of Nanostructured, Nonvolatile Charge Trap Memory Devices Based on a Binary Mixture of Metal Nanoparticles as a Charge Trapping Layer , 2009 .

[29]  S. Yoo,et al.  Bimodal arrays of two types of nanoparticles by mixtures of diblock copolymer micelles , 2009 .

[30]  S. Yoo,et al.  Nanostructures of diblock copolymer micelles for controlled fluorescence resonance energy transfer , 2009 .