|Title:||Tuning the dimensions and periodicities of nanostructures starting from the same polystyrene-block-poly(2-vinylpyridine) diblock copolymer|
|Authors :||Krishnamoorthy, Sivashankar|
|Published in :||Advanced functional materials|
|Publisher / Ed. Institution :||Wiley|
|License (according to publishing contract) :||Licence according to publishing contract|
|Type of review:||Peer review (Publication)|
|Subjects :||Tunable; Micelles; Nanostructures|
|Subject (DDC) :||620: Engineering|
|Abstract:||The controlled tuning of the characteristic dimensions of two-dimensional arrays of block-copolymer reverse micelles deposited on silicon surfaces is demonstrated. The polymer used is polystyrene-block-poly(2-vinylpyridine) (91 500-b-105 000 g mol-1). Reverse micelles of this polymer with different aggregation nos. have been obtained from different solvents. The periodicity of the micellar array can be systematically varied by changing copolymer concn., spin-coating speeds, and by using solvent mixts. The profound influence of humidity on the micellar film structure and the tuning of the film topog. through control of humidity are presented. Light scattering, at. force microscopy, SEM, transmission electron microscopy, and XPS were used for characterization. As possible applications, replication of micellar array topog. with polydimethylsiloxane and post-loading of the micelles to form iron oxide nanoparticle arrays are presented.|
|Departement:||Life Sciences and Facility Management|
|Organisational Unit:||Institute of Chemistry and Biotechnology (ICBT)|
|Publication type:||Article in scientific Journal|
|Appears in Collections:||Publikationen Life Sciences und Facility Management|
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