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A hierarchically assembled necklace composed of amphiphilic diblock copolymer micelles is exquisitely produced by capitalizing on two concurrent self‐assembly processes at different scales (i.e., “breath figure” strategy of diblock copolymer micelles solution evaporating in humid air to yield rings at the microscopic scale in conjunction with self‐assembly of diblock copolymer micelles within individual...
A transition of morphology from island-like structure to disordered and ordered holes on the surface of polystyrene (PS) and poly(2-vinylpyridine) (PVP) blend films were observed with the increase of humidity. At appropriate weight ratio of PS/PVP and PS molecular weight, when humidity reached to a critical value, the hexagonal arrays of holes formed for PS/PVP blend films due to ‘breath figures’...
Regular micrometer-size porous polystyrene film is prepared by water droplet templating, i.e. breath figures are stabilized by the polymer in solution and thermocapillary flow arranges them into ordered packing. The influences of polystyrene molecular weight, solvent properties, and the relative humidity of atmosphere on the pattern formation and hole sizes are investigated. Two different kinds of...
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