Templated Self-Assembly of a PS-Branch-PDMS Bottlebrush Copolymer

Self-Assembled Nanodot Fabrication by Using PS-PDMS Block Copolymer

Controlled evaporative self-assembly of hierarchically structured bottlebrush block copolymer with nanochannels†

The toluene solution of a bottlebrush block copolymer, polystyrene–polylactide (PS–PLA), was confined in a cylinder-on-flat geometry, from which the consecutive ‘‘stick-slip’’ motion of the threephase contact line of the PS–PLA solution was effectively regulated as toluene evaporated, thereby yielding gradient stripes at the microscopic scale. Subsequent selective solvent vapor annealing led to...

Templated Self-Assembly of Block Copolymer Thin Films Under Lithographic Confinement

Directed Self-Assembly of Block Copolymer, No1

/Description The PS-rich and neutral PS-b-PMMA block copolymer (BCP) films were spin coated on the neutral random copolymer hydroxyl-terminated PS-r-PMMA layers grafted on the native oxide and 50 nm thick PECVD amorphous silicon oxide layers. Relationship between the grafting density of BCP and surface density of hydroxyl moiety on silicon oxide is discussed. Furthermore, optimization of anneal...

Block copolymer self-assembly for nanophotonics.

The ability to control and modulate the interaction of light with matter is crucial to achieve desired optical properties including reflection, transmission, and selective polarization. Photonic materials rely upon precise control over the composition and morphology to establish periodic interactions with light on the wavelength and sub-wavelength length scales. Supramolecular assembly provides...