title: Mesoscale pincushions, microrings, and microdots prepared by heating and peeling of self-organized honeycomb-patterned films deposited on a solid substrate.
abstract: We describe here a preparation of pincushion structures with holes, hexagonally arranged microrings, and microdots by simple heating and peeling of self-organized honeycomb-patterned films. We have reported that the honeycomb-patterned films can be prepared by casting the solution of an amphiphilic polymer and a hydrophobic polymer under humid conditions. When annealing the honeycomb-patterned films prepared from an amphiphilic copolymer and poly(bisphenol A carbonate), we obtained a variety of mesoscale structures, depending on the heating temperatures. We revealed that these microstructures were formed by using the phase-separation structures in the self-organized honeycomb-patterned films. These micropatterns can be utilized for the template for microelectrodes, superhydrophobic surfaces, photonic crystals, and as a substrate for tissue engineering.
authors.affiliation: Nanotechnology Research Center, Research Institute for Electronic Science, Hokkaido University, N12W6, Sapporo 001-0021, Japan. yabu@poly.es.hokudai.ac.jp
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Yabu
authors.forename: Masatsugu
authors.initials: M
authors.lastname: Shimomura
mesh_terms: D001559:Benzhydryl Compounds; D002152:Calorimetry, Differential Scanning; D006361:Heating; D018625:Microscopy, Atomic Force; D015394:Molecular Structure; D011108:Polymers / Q000737:chemistry; D017550:Spectroscopy, Fourier Transform Infrared; D000098826:Bisphenol A Compounds; D000098827:Polycarbonates
chemical_list: D001559:Benzhydryl Compounds; D011108:Polymers; C028237:bisphenol-A-polycarbonate; D000098826:Bisphenol A Compounds; D000098827:Polycarbonates